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Ferlias N, Gjørup H, Doherty MA, Pedersen TK. Pycnodysostosis: Characteristics of teeth, mouth and jaws. Orthod Craniofac Res 2024. [PMID: 38532649 DOI: 10.1111/ocr.12782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2024] [Indexed: 03/28/2024]
Abstract
OBJECTIVES To describe the clinical and radiographic oro-dental characteristics of patients with pycnodysostosis (PDO). MATERIALS & METHODS A short interview and clinical examination of seven patients with PDO were performed as well as assessment of the temporomandibular joints and masticatory muscles using the diagnostic criteria for temporomandibular disorders, DC-TMD form. A full set of records were taken including photos and intraoral scan. Finally, existing cone beam computed tomography (CBCT) images and radiographs were also studied. RESULTS All patients presented with bimaxillary micrognathia, five had a convex profile, and two had a straight profile. In addition, posterior open bite, Angle Class III molar relation with accompanying anterior crossbite and a grooved median palate were common findings. No patient showed symptoms of temporomandibular disorder (TMD) apart from some clicking. Finally, the main radiographic findings were the obtuse mandibular angle, the frontal bossing, the elongation of the coronoid/condylar process and the presence of hypercementosis with obliterated pulp chambers. CONCLUSION The examined patients with PDO were characterized by dental crowding, malocclusion (anterior crossbite, posterior open bite), hypercementosis, obliterated pulp chambers and deviations in mandibular morphology. In conclusion, patients with PDO have a specific need for dental and orthodontic monitoring with focus on crowding and posterior open bite. The patients will benefit from a long-term orthodontic plan including extractions.
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Affiliation(s)
- Nikolaos Ferlias
- Department of Dentistry and Oral Health, Section of Orthodontics, Aarhus University, Aarhus, Denmark
| | - Hans Gjørup
- Department of Oral and Maxillofacial Surgery, Center for Oral Health in Rare Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Mia Aagaard Doherty
- Childhood Cancer Research Group, Danish Cancer Research Institute, Copenhagen, Denmark
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Thomas Klit Pedersen
- Department of Dentistry and Oral Health, Section of Orthodontics, Aarhus University, Aarhus, Denmark
- Department of Oral and Maxillofacial Surgery, Aarhus University Hospital, Aarhus, Denmark
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Xu M, Wang D, Li K, Ma T, Wang Y, Xia B. TMEM119 (c.G143A, p.S48L) Mutation Is Involved in Primary Failure of Eruption by Attenuating Glycolysis-Mediated Osteogenesis. Int J Mol Sci 2024; 25:2821. [PMID: 38474068 DOI: 10.3390/ijms25052821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Primary failure of eruption (PFE) is a rare oral disease with an incidence rate of 0.06%. It is characterized by abnormal eruption mechanisms that disrupt tooth eruption. The underlying pathogenic genetic variant and mechanism of PFE remain largely unknown. The purpose of this study was to explore the role of a novel transmembrane protein 119 (TMEM119) mutation in two PFE patients in a Chinese family. Information collection was performed on the family with a diagnosis of PFE, and blood samples from patients and healthy family members were extracted. Whole-exome sequencing was performed. Bioinformatics analysis revealed that a heterozygous variant in the TMEM119 gene (c.G143A, p.S48L) was a disease-associated mutation in this family. Recombinant pcDNA3.1 plasmid-containing wild-type and mutant TMEM119 expression cassettes were successfully constructed and transfected into MC3T3-E1 cells, respectively. The results of in vitro analysis suggested that the subcellular distribution of the TMEM119 protein was transferred from the cell cytoplasm to the nucleus, and the ability of cells to proliferate and migrate as well as glycolytic and mineralized capacities were reduced after mutation. Furthermore, rescue assays showed that activating transcription factor 4 (ATF4) overexpression rescued the attenuated glycolysis and mineralization ability of cells. Results of in vivo analysis demonstrated that TMEM119 was mainly expressed in the alveolar bone around the mouse molar germs, and the expression level increased with tooth eruption, demonstrated using immunohistochemistry and immunofluorescence. Collectively, the novel TMEM119 mutation is potentially pathogenic in the PFE family by affecting the glucose metabolism and mineralized function of osteoblasts, including interaction with ATF4. Our findings broaden the gene mutation spectrum of PFE and further elucidate the pathogenic mechanism of PFE.
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Affiliation(s)
- Mindi Xu
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Dandan Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Kefan Li
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Tianyu Ma
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Yixiang Wang
- Central Laboratory, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Bin Xia
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
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Thuaire A, Delebarre H, Marsili L, Colson C, Vanlerberghe C, Lauwers L, Raoul G, Touzet-Roumazeille S, Ferri J. Primary Failure of Dental Eruption Due to Variants Parathyroid Hormone Receptor 1: Retrospective Study and Proposal of Guidelines Treatment. J Craniofac Surg 2024:00001665-990000000-01318. [PMID: 38299863 DOI: 10.1097/scs.0000000000009963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/09/2023] [Indexed: 02/02/2024] Open
Abstract
OBJECTIVE Primary failure of eruption is characterized by a nonsyndromic defect in tooth eruption in the absence of mechanical obstruction. It is correlated to rare heterozygous variants in the parathyroid hormone receptor 1 gene. The management of primary failure of eruption is complex because many therapies are ineffective. The present study aimed to compare the clinical outcomes of our patients with the findings reported in the literature, and to propose a treatment guideline based on the literature and our experience. METHODS Retrospective study of patients affected by primary dental eruption failure in the department and analyse of the results and compare with those of the litterature. RESULTS Twelve patients belonging to 5 families (9 males, 3 females; 13-52 y old) diagnosed and treated in the maxillofacial surgery and stomatology department of the Lille University Hospital were included. All patients showed posterior tooth involvement, and most patients showed bilateral defects. None of the affected teeth had coronal alveolar bone, whereas 6 patients showed root resorption in the affected teeth. Genetic analyses, performed on 11 patients, identified a parathyroid hormone receptor 1 disease-causing variant in 7 of them (63%). Multidisciplinary treatment was required to rehabilitate these patients. Orthodontic interventions, even at an early age, are difficult in affected teeth, which are often blocked or have internal resorption. Moreover, retention of these affected teeth during growth leads to dentoskeletal malocclusions, requiring difficult surgical management in the long term. Therefore, early extraction of these teeth is frequently recommended once the diagnosis has been confirmed. An implant-borne prosthetic rehabilitation can then be achieved at the end of growth after correction of the jaw discrepancy. In case of a late diagnosis, other surgical or noninvasive techniques may be used depending on the clinical situation. Distraction osteogenesis or segmental osteotomy could be discussed for patients with mild phenotypes. CONCLUSIONS Early diagnosis of primary eruption defects is crucial to offer appropriate management as early as possible, and so to avoid late complicated treatments.
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Affiliation(s)
- Antoine Thuaire
- Department of Oral and Maxillo-Facial Surgery, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille
| | - Hélène Delebarre
- Department of Oral and Maxillo-Facial Surgery, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille
| | - Luisa Marsili
- Department of Clinical Genetics, Université de Lille, CHU Lille, Clinique de Génétique Guy Fontaine, Lille, France
- Department of Clinical Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Cindy Colson
- Department of Clinical Genetics, Service de Génétique Médicale CHRU de Lille
| | - Clemence Vanlerberghe
- Department of Oral and Maxillo-Facial Surgery, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille
| | - Ludovic Lauwers
- Department of Oral and Maxillo-Facial Surgery, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille
| | - Gwenael Raoul
- Department of Clinical Genetics, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille, Lille, France
| | - Sandrine Touzet-Roumazeille
- Department of Oral and Maxillo-Facial Surgery, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille
| | - Joël Ferri
- Department of Clinical Genetics, Service de Stomatologie et de Chirurgie Maxillo-Faciale CHRU de Lille, Lille, France
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Vinereanu A, Munteanu A, Clauss F, Gorduza EV. Rare Case of First Permanent Molar Primary Failure of Eruption with Agenesis of Premolars. CHILDREN (BASEL, SWITZERLAND) 2024; 11:152. [PMID: 38397264 PMCID: PMC10887694 DOI: 10.3390/children11020152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
Primary failure of eruption (PFE) is a rare non-syndromic condition involving total or partial non-eruption of posterior teeth in the absence of mechanical obstruction. This paper presents the case of a healthy girl referred at age 4 for asymmetry of the upper arch. Clinical examination confirmed a slight shift of the upper midline to the left, with no erupted teeth distal to the upper left canine and a left posterior open bite. Panoramic X-rays showed delayed intraosseous development of the lateral left upper teeth compared to the right side. Clinic and radiographic follow-up during the next 9 years showed that 26 had not erupted by almost 13 years of age, 27 had delayed development and an unusual shape, and there was an agenesis in 24 and 25. Genetic analysis using the PTH1R single-gene sequencing method did not detect any known disease-causing or rare pathogenic variants that could explain the patient's phenotype. Even when detected early, PFE raises difficult problems with regard to diagnosis and ortho-surgical treatment planning due to the impossibility of accurately predicting its evolution. Tooth agenesis on the same arch worsens the prognosis and adds challenges to planning the treatment. Close long-term follow-up and timely adjustment of the treatment plan in accordance with the evolution of the case are needed.
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Affiliation(s)
- Arina Vinereanu
- Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Aneta Munteanu
- Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Francois Clauss
- Faculty of Dental Surgery, University of Strasbourg, 67081 Strasbourg, France;
| | - Eusebiu Vlad Gorduza
- Faculty of Medicine, Grigore. T. Popa University of Medicine and Pharmacy Iași, 700115 Iași, Romania;
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Inchingolo F, Ferrara I, Viapiano F, Ciocia AM, Palumbo I, Guglielmo M, Inchingolo AD, Palermo A, Bordea IR, Inchingolo AM, Di Venere D, Dipalma G. Primary Failure Eruption: Genetic Investigation, Diagnosis and Treatment: A Systematic Review. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1781. [PMID: 38002872 PMCID: PMC10670730 DOI: 10.3390/children10111781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/21/2023] [Accepted: 10/29/2023] [Indexed: 11/26/2023]
Abstract
AIM The aim of this systematic review is to explore the pathology, diagnosis, treatment, and genetic basis of Primary Failure of Eruption (PFE) in the field of pediatric dentistry and orthodontics. METHODS The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed for this review. The databases PubMed, Science Direct, Scopus, and Web of Science were searched from 1 July 2013 to 1 July 2023, using keywords "primary failure of tooth eruption" OR "primary failure of eruption" OR "tooth eruption failure" OR "PFE" AND "orthodontics". The study selection process involved screening articles based on the inclusion and exclusion criteria. RESULTS A total of 1151 results were obtained from the database search, with 14 papers meeting the inclusion criteria. The review covers various aspects of PFE, including its clinical features, diagnosis, treatment options, and genetic associations with mutations in the PTH1R gene. Differentiation between PFE and Mechanical Failure of Eruption (MFE) is crucial for accurate treatment planning. Orthodontic and surgical interventions, along with multidisciplinary approaches, have been employed to manage PFE cases. Genetic testing for PTH1R mutations plays a significant role in confirming the diagnosis and guiding treatment decisions, although some cases may not be linked to this mutation. CONCLUSIONS This systematic review provides valuable insights into the diagnosis, treatment, and genetic basis of PFE. Early diagnosis and personalized treatment planning are crucial for successful management. Genetic testing for PTH1R mutations aids in accurate diagnosis and may influence treatment decisions. However, further research is needed to explore the complex genetic basis of PFE fully and improve treatment outcomes for affected individuals.
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Affiliation(s)
- Francesco Inchingolo
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Irene Ferrara
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Fabio Viapiano
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Anna Maria Ciocia
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Irene Palumbo
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Mariafrancesca Guglielmo
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Alessio Danilo Inchingolo
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Andrea Palermo
- College of Medicine and Dentistry, Birmingham B4 6BN, UK;
| | - Ioana Roxana Bordea
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, 15 V. Babes Street, 400012 Cluj-Napoca, Romania;
| | - Angelo Michele Inchingolo
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Daniela Di Venere
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (I.F.); (F.V.); (A.M.C.); (I.P.); (M.G.); (A.D.I.); (A.M.I.); (D.D.V.); (G.D.)
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Vilardaga JP, Clark LJ, White AD, Sutkeviciute I, Lee JY, Bahar I. Molecular Mechanisms of PTH/PTHrP Class B GPCR Signaling and Pharmacological Implications. Endocr Rev 2023; 44:474-491. [PMID: 36503956 PMCID: PMC10461325 DOI: 10.1210/endrev/bnac032] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/14/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
The classical paradigm of G protein-coupled receptor (GPCR) signaling via G proteins is grounded in a view that downstream responses are relatively transient and confined to the cell surface, but this notion has been revised in recent years following the identification of several receptors that engage in sustained signaling responses from subcellular compartments following internalization of the ligand-receptor complex. This phenomenon was initially discovered for the parathyroid hormone (PTH) type 1 receptor (PTH1R), a vital GPCR for maintaining normal calcium and phosphate levels in the body with the paradoxical ability to build or break down bone in response to PTH binding. The diverse biological processes regulated by this receptor are thought to depend on its capacity to mediate diverse modes of cyclic adenosine monophosphate (cAMP) signaling. These include transient signaling at the plasma membrane and sustained signaling from internalized PTH1R within early endosomes mediated by PTH. Here we discuss recent structural, cell signaling, and in vivo studies that unveil potential pharmacological outputs of the spatial versus temporal dimension of PTH1R signaling via cAMP. Notably, the combination of molecular dynamics simulations and elastic network model-based methods revealed how precise modulation of PTH signaling responses is achieved through structure-encoded allosteric coupling within the receptor and between the peptide hormone binding site and the G protein coupling interface. The implications of recent findings are now being explored for addressing key questions on how location bias in receptor signaling contributes to pharmacological functions, and how to drug a difficult target such as the PTH1R toward discovering nonpeptidic small molecule candidates for the treatment of metabolic bone and mineral diseases.
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Affiliation(s)
- Jean-Pierre Vilardaga
- Laboratory for GPCR Biology, Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Lisa J Clark
- Laboratory for GPCR Biology, Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Alex D White
- Laboratory for GPCR Biology, Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Ieva Sutkeviciute
- Laboratory for GPCR Biology, Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Ji Young Lee
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
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Korshunov AS, Vagner VD, Kuryatnikov KN, Serov DO, Torohov AL, Shykhalieva DD, Sarf EA, Bel'skaya LV. Infrared Spectroscopy to Analyze Sexual Dimorphism of Hard Dental Tissue Maturation at Eruption in Patients with Connective Tissue Dysplasia. APPLIED SPECTROSCOPY 2023; 77:457-469. [PMID: 36765457 DOI: 10.1177/00037028231160145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The aim of this study was to research the biochemical changes in the hard tissues of the lower "wisdom" teeth, which are at the stage of eruption, with connective tissue dysplasia, depending on sex. The study involved 38 patients aged 17-25 years, who had the extraction of the lower third molars on the left and right for medical reasons. Twenty-one participants in the experiment (16 females, five males) were diagnosed with connective tissue dysplasia; the remaining 17 were healthy and made up the control group (11 females, six males). Samples of enamel, dentin, and enamel-dentin junction were dried to constant weight and examined in tablets pressed in a mixture with potassium bromide on an FT-801 Fourier transform infrared (FT-IR) spectrometer (NPF Simex, Russia) in the range of 500-4000 cm-1. In the IR spectra of the enamel, enamel-dentin junction, and dentin, the absorbance ratio of amide I and II changed significantly and the absorbance of the absorption band of phosphate ions decreased from enamel to dentin. Differences between groups with and without connective tissue dysplasia increased in the following series: dentin, enamel-dentin junction, and enamel. With connective tissue dysplasia, a change in the ratio of the intensities of the absorption bands of amide I and phosphate ions was observed. Normally, the content of organic substances in the enamel of the teeth in the males group is lower than in the females group. Against the background of connective tissue dysplasia, the content of organic substances in the enamel in women decreased while in men it increased, which confirmed the presence of sexual dimorphism during the maturation of hard dental tissues at the eruption stage. The study confirms the opinion of many researchers about the significant role of collagen proteins, which, together with non-collagen proteins, are involved in the development and maturation of dental hard tissues, which are characterized by pronounced heterogeneity and sexual dimorphism in the group with connective tissue dysplasia.
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Affiliation(s)
- Andrey S Korshunov
- Department of Dentistry, Omsk State Medical University, Omsk, Russian Federation
| | - Vladimir D Vagner
- Department of the Organization of the Dental Service, Licensing and Accreditation, Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russian Federation
| | - Kirill N Kuryatnikov
- Department of Dentistry, Omsk State Medical University, Omsk, Russian Federation
| | - Dmitriy O Serov
- Department of Dentistry, Omsk State Medical University, Omsk, Russian Federation
| | - Andrey L Torohov
- Department of Dentistry, Omsk State Medical University, Omsk, Russian Federation
| | | | - Elena A Sarf
- Biochemistry Research Laboratory, Omsk State Pedagogical University, Omsk, Russian Federation
| | - Lyudmila V Bel'skaya
- Biochemistry Research Laboratory, Omsk State Pedagogical University, Omsk, Russian Federation
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The Effects of Intrusion of Anterior Teeth by Skeletal Anchorage in Deep Bite Patients; A Systematic Review and Meta-Analysis. Biomimetics (Basel) 2023; 8:biomimetics8010101. [PMID: 36975331 PMCID: PMC10046359 DOI: 10.3390/biomimetics8010101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/11/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Background: Deep bite is known as one of the most common malocclusions, and its treatment and retention are often challenging. The use of mini-screws has been suggested as an ideal method for the intrusion of incisors in deep-bite patients. Still, there are conflicting reports regarding the superiority of this method compared to other common treatments. Aim: The aim of this systematic review and meta-analysis was to evaluate the effects of the intrusion of anterior teeth by skeletal anchorage in deep bite patients. Methods: From the beginning to 15 September 2022, articles on the topic of interest were searched in electronic databases including PubMed, Web of Science, Scopus, EMBASE, and Cochrane’s CENTRAL. Additionally, a hand search for pertinent studies and a search of the grey literature were carried out. After the selection of eligible studies, data extraction was performed using piloted forms. Inverse-variance random-effects meta-analyses were used to combine the outcome measures of dental indices, skeletal cephalometric indices, and dental cephalometric indices. Results: A total of 15 studies (6 RCT; 9 CCT) were included in the systematic review and 14 were used in the meta-analyses. The differences in overbite changes (MD = −0.45, p = 0.04), true incisor intrusion [u1-pp] (MD = −0.62, p = 0.003) and molar extrusion [u6-pp] (MD = −0.40, p = 0.01) were statistically significant and TADs showed better treatment results than other intrusion methods (segmented intrusion arch, utility arch, J hook headgear). No significant differences regarding overjet, molar and incisor tipping, and skeletal indices between mini-screw and other intrusion methods could be found. Conclusion: The use of mini-screws leads to lower overbite and higher true intrusion (about 0.45 and 0.62 mm, respectively) compared to the use of other methods for intruding upper incisors. Furthermore, the effect of TAD on extrusion of molar teeth is less (by 0.4 mm) than other methods.
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9
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Wagner D, Rey T, Maniere MC, Dubourg S, Bloch-Zupan A, Strub M. Primary failure of eruption: From molecular diagnosis to therapeutic management. J Oral Biol Craniofac Res 2023; 13:169-176. [PMID: 36654816 PMCID: PMC9841033 DOI: 10.1016/j.jobcr.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/02/2023] [Accepted: 01/05/2023] [Indexed: 01/09/2023] Open
Abstract
Introduction Primary Failure of Eruption (PFE) is a rare condition affecting posterior teeth eruption resulting in a posterior open bite malocclusion. Differential diagnosis like ankylosis or mechanical eruption failure should be considered. For non-syndromic forms, mutations in PTH1R, and recently in KMT2C genes are the known etiologies. The aim of this work was to describe the variability of clinical presentations of PFE associated with pathogenic variants of PTHR1. Material and methods Diagnosis of non-syndromic PFE has been suggested for three members of a single family. Clinical and radiological features were collected, and genetic analyses were performed. Results The clinical phenotype (type and number of involved teeth, depth of bone inclusions, functional consequences) is variable within the family. Severe tooth resorptions were detected. A heterozygous substitution in PTH1R (NM_000316.3): c.899T > C was identified as a class 4 likely pathogenic variant. The multidisciplinary management is described involving oral biology, pediatric dentistry, orthodontics, oral surgery, and prosthodontics. Conclusion In this study, we report a new PTH1R variant involved in a familial form of PFE with variable expressivity. Therapeutic care is complex and difficult to systematize, hence the lack of evidence-based recommendations and clinical guidelines.
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Affiliation(s)
- Delphine Wagner
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Ste Elisabeth, 67000, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
- UMR 7357, ICube laboratory, Boulevard Sébastien Brant 300, 67412, Illkirch, France
| | - Tristan Rey
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U1258, CNRS- UMR7104, Illkirch, France
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d’Alsace, Strasbourg, France
| | - Marie-Cécile Maniere
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Ste Elisabeth, 67000, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Human, 67000, Strasbourg, France
| | - Sarah Dubourg
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
| | - Agnès Bloch-Zupan
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Ste Elisabeth, 67000, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U1258, CNRS- UMR7104, Illkirch, France
- Université de Strasbourg, Institut d’études avancées (USIAS), Strasbourg, France
| | - Marion Strub
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Ste Elisabeth, 67000, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Human, 67000, Strasbourg, France
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10
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Aslam‐Pervez B, Carr E. Bilateral ‘kissing’ molars: A case report. Clin Case Rep 2022; 10:e6407. [PMID: 36381048 PMCID: PMC9653165 DOI: 10.1002/ccr3.6407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 09/05/2022] [Accepted: 09/20/2022] [Indexed: 11/14/2022] Open
Abstract
‘Kissing molars’, were described by Van Hoof in 1973 as when the occlusal surfaces of impacted molars are united by the same follicular space and the roots point in the opposite direction. There are very few published cases in the literature, and it is an extremely rare form of impaction. This manuscript concerns the diagnosis and management of a rare dentoalveolar clinical and radiographic presentation, which may be encountered by and be of interest to dental practitioners in both primary and secondary care.
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Affiliation(s)
- Bilal Aslam‐Pervez
- Oral and Maxillofacial Surgery, NHS Greater Glasgow and Clyde Queen Elizabeth University Hospital Glasgow UK
| | - Emma Carr
- Oral and Maxillofacial Surgery, NHS Greater Glasgow and Clyde Queen Elizabeth University Hospital Glasgow UK
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11
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Yamaguchi T, Hosomichi K, Shirota T, Miyamoto Y, Ono W, Ono N. Primary failure of tooth eruption: Etiology and management. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:258-267. [PMID: 36159186 PMCID: PMC9489741 DOI: 10.1016/j.jdsr.2022.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/01/2022] [Accepted: 08/21/2022] [Indexed: 11/16/2022] Open
Abstract
Primary failure of eruption (PFE) is a rare disorder defined as incomplete tooth eruption despite the presence of a clear eruption pathway. PFE is known to be caused by rare variants in the parathyroid hormone 1 receptor gene (PTH1R). Although several PTH1R variants have been reported, the etiology of PFE remains unclear. However, important studies that help elucidate the pathology of PFE have recently been published. The purpose of this review is to summarize current treatment options, clinical symptoms or phenotypes for diagnosis, genetic information including solid evidence in mouse disease models and disease-specific induced pluripotent stem cells, thus approaching the etiology of PFE from the perspective of the latest research.
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Affiliation(s)
| | - Kazuyoshi Hosomichi
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - Tatsuo Shirota
- Department of Oral and Maxillofacial Surgery, Showa University School of Dentistry, Tokyo, Japan
| | - Yoichi Miyamoto
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Wanida Ono
- University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, USA
| | - Noriaki Ono
- University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, USA
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12
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Ruíz-Mora GA, Arriola-Guillén LE, Aliaga-Del Castillo A, Rodríguez-Cárdenas YA, Avalos-Hernández RE. Multiple eruptive delay as a variant of primary eruption failure. A preliminary case report. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e922-e929. [PMID: 35850440 DOI: 10.1016/j.jormas.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/23/2022] [Accepted: 07/15/2022] [Indexed: 11/18/2022]
Abstract
Primary failure of eruption (PFE) is an autosomal disease that occurs in approximately 0.06% of the population and is defined as the malfunction of dental eruptive mechanisms with delay and absence of these processes in a non-ankylosed tooth. Treatment options for patients with eruptive delays range from prosthetic to surgical interventions. Although this condition is relatively rare, the occurrence of eruptive disorders in clinical dental practice is becoming more frequent. Correct diagnosis of this eruptive anomaly plays an essential role in treatment planning. The aim of this case report was to describe the treatment of a case of multiple PFE with a biomechanical approach to extrusive traction using NiTi closed coil springs and a customized rigid anchorage. In conclusion, complex orthodontic cases with eruptive delay and variants of PFE can be successfully intervened to make morphologically and functionally compromised dental organs viable, if diagnosed and treated in a timely and preventive manner by a multidisciplinary approach using alternative biomechanics for efficient osteogenic traction.
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Affiliation(s)
- Gustavo Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia; and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú.
| | - Aron Aliaga-Del Castillo
- Postdoctoral Fellow. Department of Orthodontics, Bauru Dental School. University of São Paulo, Brazil
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
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13
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Küchler EC, Henklein SD, Proff P, Lepri CP, Perin CP, Paddenberg E, Roskamp L, Baratto-Filho F, de Menezes-Oliveira MAH, Kirschneck C. Single Nucleotide Polymorphisms in COX2 Is Associated with Persistent Primary Tooth and Delayed Permanent Tooth Eruption. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10047. [PMID: 36011680 PMCID: PMC9408601 DOI: 10.3390/ijerph191610047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Persistent primary tooth (PPT) is a prevalent clinical condition that occurs when a primary tooth is over-retained beyond the established period of its normal exfoliation time, remaining in the oral cavity. Many factors could be involved in the risk of PPT; therefore, the aim of this study was to evaluate if single nucleotide polymorphisms (SNPs) in the COX2 gene are associated with PPT. Children undergoing orthodontic treatment were screened. Orthopantomographs were assessed to evaluate PPT according to the Nolla stage of its permanent successor. The primary tooth was considered retained when its successor permanent tooth was in Nolla stage 8 and below the alveolar crypt, Nolla stage 9, or Nolla stage 10. A saliva sample from each child was collected and used for DNA extraction. A real-time PCR of two SNPs, rs689466 (-1195 G/A) and rs5275 (+665 T/C), was performed. A chi-square test was used to compare the allele and genotype distribution. Haplotype analysis was also performed. A total of 100 children were included in the study. Fifty-one had at least one PPT, while 49 children were classified as a control. The number of teeth persistent in the oral cavity ranged from 1 to 8. The genotype distribution was associated with PPT in the co-dominant model (p = 0.006) for SNP rs5275. The individuals that carry two T alleles (TT) compared with the individuals that carry at least one C allele (C + TC) had an almost three times higher chance of presenting with PPT (p = 0.012; OR = 2.99, CI95% 1.28 to 6.95-recessive model). The haplotype C-A for the SNPs rs5275 and rs689466, respectively, was significantly associated (p = 0.042). In conclusion, single nucleotide polymorphisms in the gene encoding for COX2 are associated with persistent primary tooth and may delay permanent tooth eruption.
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Affiliation(s)
- Erika Calvano Küchler
- Department of Orthodontics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
- School of Dentistry, Tuiuti University of Paraná, Rua Sydnei Antonio Rangel Santos, 238-Santo Inacio, Curitiba 82010-330, PR, Brazil
| | | | - Peter Proff
- Department of Orthodontics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
| | - César Penazzo Lepri
- Department of Biomaterials, University of Uberaba-UNIUBE, Uberaba 38010-200, MG, Brazil
| | - Camila Paiva Perin
- School of Dentistry, Tuiuti University of Paraná, Rua Sydnei Antonio Rangel Santos, 238-Santo Inacio, Curitiba 82010-330, PR, Brazil
| | - Eva Paddenberg
- Department of Orthodontics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
| | - Liliane Roskamp
- School of Dentistry, Tuiuti University of Paraná, Rua Sydnei Antonio Rangel Santos, 238-Santo Inacio, Curitiba 82010-330, PR, Brazil
| | - Flares Baratto-Filho
- School of Dentistry, Tuiuti University of Paraná, Rua Sydnei Antonio Rangel Santos, 238-Santo Inacio, Curitiba 82010-330, PR, Brazil
- School of Dentistry, Univille University, Rua Paulo Malschitzki, 10, Zona Industrial Norte, Joinville 89219-710, SC, Brazil
| | | | - Christian Kirschneck
- Department of Orthodontics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
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14
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Frequency and Local Etiological Factors of Impaction of Permanent Teeth among 1400 Patients in a Greek Population. Dent J (Basel) 2022; 10:dj10080150. [PMID: 36005248 PMCID: PMC9406841 DOI: 10.3390/dj10080150] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 07/25/2022] [Accepted: 08/09/2022] [Indexed: 11/19/2022] Open
Abstract
Background: The purpose of this study is to analyze the frequency of impaction of permanent teeth, beyond the third molars, and to highlight the factors causing this condition. Methods: Panoramic radiographs of 1400 patients that sought orthodontic treatment in private practice were retrieved and examined. All teeth that had not been erupted at the time of the examination while their root formation was completed were considered impacted. Results: In total, 212 out of 1400 patients had at least one impacted tooth (15.14%). The highest incidence of tooth impaction was in the canines of the maxilla, followed by the central incisors of the maxilla, the second molars of the mandible and the second premolars of the mandible. The most common etiological factors responsible for the impaction were the ectopic eruption pathway, loss of space in the arch, the ankylosis of the deciduous teeth and the presence of supernumerary teeth. Conclusions: Tooth impaction is frequently seen in everyday orthodontic practice. The upper canines are the teeth most frequently associated with impaction and failure of eruption. It is important to diagnose cases of impaction early on and identify the etiological factors in order to achieve immediate and effective treatment per patient.
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15
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Infraocclusion: Prevalence, Characteristics, and Associated Dental Anomalies in Arabian Children. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6624804. [PMID: 35915788 PMCID: PMC9338852 DOI: 10.1155/2022/6624804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/27/2022] [Accepted: 07/04/2022] [Indexed: 11/17/2022]
Abstract
Aim. To analyze the distribution and characteristics of infraocclusion among Arabian children in primary dentition and its associated dental anomalies. Methods. A radiographic analysis was performed retrospectively using digital panoramic radiographs of children attending the pediatric dental clinic of College of Dentistry, Majmaah University, Saudi Arabia, from January 2019 to May 2021. The panoramic radiographs were analyzed to assess the distribution and characteristics of infraocclusion and its associated dental anomalies. Descriptive statistics were used for comparisons using SPSS version 21.0 (IBM Corp., Armonk, N.Y., USA). The chi-square test was used to compare percentages. Results. Among the study population (542), only 40 children reported infraocclusion of 65 primary molars. Infraocclusion was common in males (90%) and very frequent in the mandibular arch (
teeth). In the primary dentition, unilateral infraocclusion (62.5%) was very frequent than bilateral presence (37.5%). Single molars were involved in 50% of the patients, while two, three, and four molars were involved in 42.5%, 2.5%, and 5% of cases. The mandibular second primary molar was frequently affected with infraocclusion, while the maxillary first primary molar was less commonly affected. In the mandibular arch, the second primary molar (28, 58%) was more commonly affected with infraocclusion than the mandibular first primary molars and maxillary primary and secondary molars (
). The majority of the infraoccluded molars were mild (75%), followed by moderate (23.5%) and severe (1.5%). Hypodontia (12.5%) is frequently associated with infraocclusion, followed by supernumerary teeth (5%) and radix entomolaris of the first permanent mandibular molars (5%). Infraocclusion was more in the second primary molar mandibular arch, while in the maxillary arch, the first primary molars were commonly affected (
). Conclusion. In Arabian children, infraocclusion was commonly observed in mandibular second primary molars. Unilateral infraocclusion is a mild type of infraocclusion frequent in Arabian children. Numerical anomalies such as hypodontia and supernumerary teeth are associated with infraocclusion.
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16
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Avalos-Hernández RE, Arriola-Guillén LE, Aliaga-Del Castillo A, Rodríguez-Cárdenas YA, Ruíz-Mora GA. Primary failure of eruption: occlusal and dentoalveolar characteristics in mixed and permanent dentition. A study with cone beam computed tomography. J Clin Exp Dent 2022; 14:e520-e527. [PMID: 35912030 PMCID: PMC9328488 DOI: 10.4317/jced.59657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/26/2022] [Indexed: 12/05/2022] Open
Abstract
Background The main objective of this study was to describe the dentoalveolar and occlusal characteristics of subjects with primary failure of eruption (PFE) in cone beam computed tomography (CBCT) and compare them with a control group without the anomaly.
Material and Methods This retrospective and comparative study evaluated CBCT images of 80 permanent molars divided into 2 groups of 40 molars each, which had or did not have PFE characteristics. Using CBCT a calibrated orthodontist performed 23 measurements related to the distances of the cusps to the occlusal, palatal and mandibular planes and measured the buccal-palatal and mesiodistal widths of the molar crowns and their root lengths. Independent Student’s t or Mann-Whitney U tests were used to compare occlusal and dentoalevolar characteristics between groups according to the normality of the data. P<0.05.
Results Molars affected by PFE were smaller in coronal dimensions in the PFE compared to the non-PFE group (Buccal-palatal crown width 11.60±0.95mm vs. 12.21±1.09 mm; p<0.001; and mesiodistal crown width 10.81± 1.07 mm vs. 11.84±1.32mm, respectively; p<0.001). The distal and mesial root lengths were approximately 2 mm smaller in the PFE group (p<0 .001). The three-dimensional bony position was more convergent with respect to the palatal plane, i.e., the crown was more inclined palatally and distally in the PFE compared to the non-PFE group.
Conclusions Patients with molars affected by PFE present smaller bucco-palatal, mesio-distal coronal widths and mesial and distal root lengths than those without PFE and in these teeth the crowns are more inclined palatally and distally in upper molars. These specific characteristics may be pathognomonic of PFE and should be considered by clinicians when evaluating or treating patients with this condition. Key words:Occlusal characteristics, primary failure of eruption, cone-beam CT.
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Affiliation(s)
| | - Luis-Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Aron Aliaga-Del Castillo
- Postdoctoral Fellow. Department of Orthodontics, Bauru Dental School. University of São Paulo, Brazil
| | - Yalil-Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
| | - Gustavo-Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia; and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
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17
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Roulias P, Kalantzis N, Doukaki D, Pachiou A, Karamesinis K, Damanakis G, Gizani S, Tsolakis AI. Teeth Eruption Disorders: A Critical Review. CHILDREN 2022; 9:children9060771. [PMID: 35740708 PMCID: PMC9222051 DOI: 10.3390/children9060771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/16/2022]
Abstract
Dental eruption refers to the vertical displacement of a tooth from its initial non-functional towards its functional position. Tooth eruption disorders may be expressed in various clinical conditions, which may be grouped as “primary retention” and “secondary retention”. The purpose of this article is to review the literature and the clinical parameters of the various conditions related to tooth eruption disorders. Materials and Methods: The search strategy of this critical review included keywords in combination with MeSH terms in Medline, Scopus, and Cochrane Library until February 2022 and only in English. Results: “Primary Failure of Eruption” (PFE) occurs during the eruption process and includes clinical characteristics of both primary and secondary retention, which make diagnosis difficult. PFE is distinguished by Types I and II. In Type I, the defect in the eruption process occurs in all the relative teeth at the same time, whilst in Type II, the clinical expressions vary in multiple quadrants of the mouth, and the second molars erupt more. The variability of the PFE’s clinical spectrum seems to be connected to a genetic origin. The differential diagnosis among single ankylosis, secondary retention, and PFE is based on the occlusal relationship between the upper and the lower teeth distally, most commonly the first molar, which has not yet fully erupted. The treatment approach depends on many factors and combines surgical and orthodontic techniques.
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Affiliation(s)
- Panagiotis Roulias
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (G.D.); (A.I.T.)
- Correspondence:
| | | | - Dafni Doukaki
- Independent Researcher, 11527 Athens, Greece; (N.K.); (D.D.); (K.K.)
| | - Aspasia Pachiou
- Department of Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | | | - George Damanakis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (G.D.); (A.I.T.)
| | - Sotiria Gizani
- Department of Pediatric Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Apostolos I. Tsolakis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece; (G.D.); (A.I.T.)
- Department of Orthodontics, Case Western Reserve University, Cleveland, OH 44106, USA
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18
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Awad MG, Dalbah L, Srirengalakshmi M, Venugopal A, Vaid NR. Review and case report of the treatment in a young girl with primary failure of eruption. Clin Case Rep 2022; 10:e05632. [PMID: 35340651 PMCID: PMC8931470 DOI: 10.1002/ccr3.5632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 03/03/2022] [Accepted: 03/08/2022] [Indexed: 11/18/2022] Open
Abstract
Any localized non‐eruption of teeth can be attributed to myriad of factors. A failure of a permanent tooth to erupt or cessation of initial eruption with no obvious local/systemic causative factor is said to be primary failure of eruption (PFE). The etio‐pathogenesis of PFE is due to the mutation of PTH1R gene. Clinical features such as infra‐occluded teeth, posterior open bite, lack of any cause or habit are usually attributed to diagnosing the condition, and a confirmatory diagnosis is done by the gene analysis of PTH1R gene. Treatment of such a condition is tricky as any application of orthodontic traction to teeth affected by PFE will not be successful and may cause ankylosis. This correspondence reviews and demonstrates the treatment of a case of PFE to restore function and esthetics to the best possible outcome.
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Affiliation(s)
| | | | - M. Srirengalakshmi
- Department of Orthodontics Saveetha Dental CollegeSaveetha Institute of Medical and Technical Sciences Chennai India
| | - Adith Venugopal
- Department of Orthodontics Saveetha Dental CollegeSaveetha Institute of Medical and Technical Sciences Chennai India
- Department of Orthodontics University of Puthisastra Phnom Penh Cambodia
| | - Nikhilesh R. Vaid
- Department of Orthodontics Saveetha Dental CollegeSaveetha Institute of Medical and Technical Sciences Chennai India
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19
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Meade MJ, Dreyer CW. Eruption disturbances in the mixed dentition: orthodontic considerations for primary dental care. Aust Dent J 2022; 67 Suppl 1:S14-S23. [PMID: 35916055 DOI: 10.1111/adj.12931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2022] [Indexed: 01/07/2023]
Abstract
The primary dental care clinician is in a prime position to identify deviations from normal dental development. Disturbances can affect any new erupting tooth. The objective of this narrative review is to describe several situations in which eruption disturbances can arise during the mixed dentition. It will provide an overview of the orthodontic considerations of these disturbances in addition to key summary points on interceptive management, based on the best available evidence.
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Affiliation(s)
- M J Meade
- Orthodontic Unit, Adelaide Dental School, The University of Adelaide, South Australia, Australia
| | - C W Dreyer
- Orthodontic Unit, Adelaide Dental School, The University of Adelaide, South Australia, Australia
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20
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Yassin SM, Alkahtani ZM, Abdul Khader M, Almoammar S, Dawasaz AA, Asif SM, Togoo RA. Applicability of Willems model of dental age estimation in a sample of southern Saudi Arabian children. AUST J FORENSIC SCI 2022. [DOI: 10.1080/00450618.2021.2002408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Syed M. Yassin
- Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Zuhair M. Alkahtani
- Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Mohasin Abdul Khader
- Department of Periodontics and Community Dental Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Salem Almoammar
- Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Ali Azhar Dawasaz
- Department of Diagnostic Sciences and Oral Biology, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Shaik Mohammed Asif
- Department of Diagnostic Sciences and Oral Biology, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Rafi Ahmad Togoo
- Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
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21
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Futyma-Gąbka K, Manaj A, Osiak A, Piskórz M, Różyło-Kalinowska I. Evaluation of haller's cells prevalence in a sample of Polish population assessed using panoramic radiographs. INDIAN JOURNAL OF MEDICAL SPECIALITIES 2022. [DOI: 10.4103/injms.injms_68_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Ray JG, Dutta S, Sarangi S, Yadav P. Noneruption of teeth in amelogenesis imperfecta: A report of two cases and review. J Oral Maxillofac Pathol 2022; 26:254-258. [PMID: 35968177 PMCID: PMC9364627 DOI: 10.4103/jomfp.jomfp_471_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/03/2021] [Accepted: 07/03/2021] [Indexed: 11/22/2022] Open
Abstract
Amelogenesis imperfecta (AI) comprises a complicated group of conditions, involving a structural defect of the tooth enamel, owing to certain genetic disturbances. It is expressed as an autosomal dominant, autosomal recessive or X-linked recessive trait. The structural pattern and clinical appearances of all the teeth, including those in the deciduous as well as the permanent dentition, are affected. It may be differentiated into three main divisions such as hypoplastic, hypocalcific and hypomaturative patterns. Eruption of tooth refers to a complex coordinated physiological process characterized by the movement of a tooth from its initial developmental position within the jaws to its final functional position in the occlusal plane, dictated crucially by dental follicle, bony remodeling metabolic alteration and molecular determinants. Alteration involving any one of the factors might cause hindrances. Herein, we report two cases with AI associated with noneruption.
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Affiliation(s)
- Jaygopal G Ray
- Department of Oral Pathology, Burdwan Dental College and Hospital, Burdwan, West Bengal, India
| | - Sayani Dutta
- Department of Oral Pathology, Burdwan Dental College and Hospital, Burdwan, West Bengal, India
| | - Snehanjan Sarangi
- Department of Oral Pathology, Burdwan Dental College and Hospital, Burdwan, West Bengal, India,Address for correspondence: Dr. Snehanjan Sarangi, FD-9, Flat No. 3, Salt Lake, Kolkata - 700 106, West Bengal, India. E-mail:
| | - Priyanka Yadav
- Department of Public Health Dentistry, Burdwan Dental College and Hospital, Burdwan, West Bengal, India
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Bach A, Parry A, Lacerda RP, Gomez AP. Nasolacrimal duct disease secondary to an unerupted tooth in a dog. VETERINARY RECORD CASE REPORTS 2021. [DOI: 10.1002/vrc2.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ana Bach
- Primary Care Willows Veterinary Centre & Referral Service Solihull West Midlands UK
| | - Andrew Parry
- Diagnostic Imaging Willows Veterinary Centre & Referral Service Solihull West Midlands UK
| | | | - Alberto Palella Gomez
- Ophthalmology Willows Veterinary Centre & Referral Service Solihull West Midlands UK
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Grippaudo C, D'Apolito I, Cafiero C, Re A, Chiurazzi P, Frazier-Bowers SA. Validating clinical characteristic of primary failure of eruption (PFE) associated with PTH1R variants. Prog Orthod 2021; 22:43. [PMID: 34897565 PMCID: PMC8666410 DOI: 10.1186/s40510-021-00387-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 10/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Primary failure of eruption (PFE) is a hereditary condition, and linkage with variants in the PTH1R gene has been demonstrated in many cases. The clinical severity and expression of PFE is variable, and the genotype-phenotype correlation remains elusive. Further, the similarity between some eruption disorders that are not associated with PTH1R alterations is striking. To better understand the genotype-phenotype correlation, we examined the relationship between the eruption phenotype and PTH1R genotype in 44 patients with suspected PFE and 27 unaffected relatives. Sanger sequencing was employed to analyze carefully selected PFE patients. Potential pathogenicity of variants was evaluated against multiple genetic databases for function prediction and frequency information. RESULTS Mutational analysis of the PTH1R coding sequence revealed 14 different variants in 38 individuals (30 patients and 8 first-degree relatives), 9 exonic and 5 intronic. Their pathogenicity has been reported and compared with the number and severity of clinical signs. In 72.7% of patients with pathogenic variants, five clinical and radiographic criteria have been found: involvement of posterior teeth, involvement of the distal teeth to the most mesial affected, supracrestal presentation, altered vertical growth of the alveolar process and posterior open-bite. In cases with mixed dentition (3), the deciduous molars of the affected quadrant were infraoccluded. DISCUSSION The probability of an affected patient having a PTH1R variant is greater when five specific clinical characteristics are present. The likelihood of an eruption defect in the absence of specific clinical characteristics is rarely associated with a PTH1R mutation. CONCLUSIONS We report here that systematic clinical and radiographic observation using a diagnostic rubric is highly valuable in confirming PFE and offers a reliable alternative for accurate diagnosis.
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Affiliation(s)
- Cristina Grippaudo
- School of Dentistry, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli 8, 00168, Rome, Italy.,Fondazione Policlinico Universitario "A. Gemelli" IRCCS, L.go Agostino Gemelli 8, 00168, Rome, Italy
| | - Isabella D'Apolito
- School of Dentistry, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli 8, 00168, Rome, Italy
| | | | - Agnese Re
- Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Pietro Chiurazzi
- Dipartimento Universitario Scienze della Vita e Sanità Pubblica, Sezione di Medicina Genomica, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168, Rome, Italy. .,UOC Genetica Medica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy.
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25
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Bastos VC, Gomez RS, Gomes CC. Revisiting the human dental follicle: From tooth development to its association with unerupted or impacted teeth and pathological changes. Dev Dyn 2021; 251:408-423. [PMID: 34324745 DOI: 10.1002/dvdy.406] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/16/2021] [Accepted: 07/22/2021] [Indexed: 02/06/2023] Open
Abstract
Dental follicles are involved in odontogenesis, periodontogenesis, and tooth eruption. Dental follicles are unique structures, considering that their remnants can persist within the jawbones after odontogenesis throughout life if the tooth does not erupt. Pathological changes may occur in these tissues as individuals age. The changes range from benign to life threatening. Thus, the assessment of age-related changes in dental follicles associated with unerupted teeth is of paramount importance. In this review, we summarize the physiological roles and changes in dental follicles in odontogenesis, tooth eruption, and aging, in addition to the pathological changes associated with these structures. We encourage investigators to consider this peculiar tissue as a unique model and explore its potential to clarify its importance from the viewpoints of developmental biology, tissue physiology, and pathology.
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Affiliation(s)
- Victor Coutinho Bastos
- Department of Oral Surgery and Pathology, Faculty of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil.,Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, Faculty of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Carolina Cavaliéri Gomes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
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26
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Rare Case of Unerupted Second Deciduous Molar with Congenitally Missing Second Permanent Premolar: Case Report. BALKAN JOURNAL OF DENTAL MEDICINE 2020. [DOI: 10.2478/bjdm-2020-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Summary
Background/Aim: The purpose of this report is to present an unusual case of failure of eruption of a second deciduous molar and its management.
Case Report: An 8-year-old boy presented with a complaint of a missing tooth. Radiographic examination revealed the second deciduous molar was impacted without any mechanical obstacles, like an odontoma or supernumerary teeth, being present.
Conclusions: The case presented in this report is of scientific relevance due to the rarity of this type of pathology and the interesting histopathology.
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27
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Histopathological features assessment of suspected pathologic pericoronal tissue of embbeded teeth. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY MEDICINE AND PATHOLOGY 2020. [DOI: 10.1016/j.ajoms.2020.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Huang W, Shan B, Ang BS, Ko J, Bloomstein RD, Cangialosi TJ. Review of Etiology of Posterior Open Bite: Is There a Possible Genetic Cause? Clin Cosmet Investig Dent 2020; 12:233-240. [PMID: 32612395 PMCID: PMC7323810 DOI: 10.2147/ccide.s231670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 04/22/2020] [Indexed: 11/23/2022] Open
Abstract
Posterior open bite (POB) is one of the most severe malocclusions that can impair patients' masticatory functions, yet it is also a condition that is poorly understood and not well studied. Most reported cases are either sporadic or idiosyncratic with a diverse yet poorly understood etiology. Although primary failure of eruption (PFE), lateral tongue thrust, and certain medical syndromes or pathology of the temporomandibular joints have all been shown to cause POB, the complex interplay of environmental and genetic factors makes its etiopathogenesis a difficult subject to understand and investigate. Here, we provide a comprehensive review of the etiology of posterior open bite. Additionally, a genetic cause for POB is proposed through a report of an apparently non-syndromic familial case series with high POB penetrance across two generations. Further investigations of the gene(s) and mechanism(s) involved can not only provide a unique opportunity to better understand POB and the intricate muscular-occlusal relationship, but also offer powerful insight into the most effective approaches to clinical management of these (and potentially other) malocclusions.
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Affiliation(s)
- Wei Huang
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, NJ 07103, USA
| | - Bo Shan
- School of Public Health, Rutgers University, Newark, NJ, 07103, USA
| | - Brittany S Ang
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, NJ 07103, USA
| | - Jennifer Ko
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, NJ 07103, USA
| | - Richard D Bloomstein
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, NJ 07103, USA
| | - Thomas J Cangialosi
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, NJ 07103, USA
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29
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Cui C, Bi R, Liu W, Guan S, Li P, Song D, Xu R, Zheng L, Yuan Q, Zhou X, Fan Y. Role of PTH1R Signaling in Prx1 + Mesenchymal Progenitors during Eruption. J Dent Res 2020; 99:1296-1305. [PMID: 32585127 DOI: 10.1177/0022034520934732] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Tooth eruption is a complex process requiring precise interaction between teeth and adjacent tissues. Molecular analysis demonstrates that bone remodeling plays an essential role during eruption, suggesting that a parathyroid hormone 1 receptor (PTH1R) gene mutation is associated with disturbances in bone remodeling and results in primary failure of eruption (PFE). Recent research reveals the function of PTH1R signaling in mesenchymal progenitors, whereas the function of PTH1R in mesenchymal stem cells during tooth eruption remains incompletely understood. We investigated the specific role of PTH1R in Prx1+ progenitor expression during eruption. We found that Prx1+-progenitors occur in mesenchymal stem cells residing in alveolar bone marrow surrounding incisors, at the base of molars and in the dental follicle and pulp of incisors. Mice with conditional deletion of PTH1R using the Prx1 promoter exhibited arrested mandibular incisor eruption and delayed molar eruption. Micro-computed tomography, histomorphometry, and molecular analyses revealed that mutant mice had significantly reduced alveolar bone formation concomitant with downregulated gene expression of key regulators of osteogenesis in PTH1R-deficient cells. Moreover, culturing orofacial bone-marrow-derived mesenchymal stem cells (OMSCs) from Prx1Cre;PTH1Rfl/fl mice or from transfecting Cre recombinase adenovirus in OMSCs from PTH1Rfl/fl mice suggested that lack of Pth1r expression inhibited osteogenic differentiation in vitro. However, bone resorption was not affected by PTH1R ablation, indicating the observed reduced alveolar bone volume was mainly due to impaired bone formation. Furthermore, we found irregular periodontal ligaments and reduced Periostin expression in mutant incisors, implying loss of PTH1R results in aberrant differentiation of periodontal ligament cells. Collectively, these data suggest that PTH1R signaling in Prx1+ progenitors plays a critical role in alveolar bone formation and periodontal ligament development during eruption. These findings have implications for our understanding of the physiologic and pathologic function of PTH1R signaling in tooth eruption and the progression of PFE.
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Affiliation(s)
- C Cui
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - R Bi
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - W Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - S Guan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - P Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - D Song
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - R Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - L Zheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Q Yuan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - X Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Y Fan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
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30
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Yassin SM. Accuracy of Demirjian’s four methods of dental age estimation in a sample of Saudi Arabian population. AUST J FORENSIC SCI 2020. [DOI: 10.1080/00450618.2020.1766110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Syed M. Yassin
- Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
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31
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Primary Retention of Molars and RANKL Signaling Alteration during Craniofacial Growth. J Clin Med 2020; 9:jcm9040898. [PMID: 32218136 PMCID: PMC7231205 DOI: 10.3390/jcm9040898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/20/2020] [Accepted: 03/20/2020] [Indexed: 12/21/2022] Open
Abstract
The primary retention of molars observed in clinic corresponds to a still-unexplained absence of molar eruption despite the presence of an eruption pathway, resembling the experimental transient inhibition of RANKL signaling in mice. The aim of the present study was to confront the hypothesis according to which the primary retention of molars is associated with transitory perturbations to RANKL signaling during growth as part of a wider craniofacial skeleton pattern. The experimental strategy was based on combining a clinical study and an animal study corresponding to the characterization of the craniofacial phenotypes of patients with primary retention of molars and analyses in mice of the consequences of transient inhibition of RANKL signaling on molar eruption and craniofacial growth. The clinical study validated the existence of a particular craniofacial phenotype in patients with primary retention of molars: a retromandibular skeletal class II typology with reduced mandibular dimensions which manifests itself at the dental level by a class II/2 with palatoversion of the upper incisors and anterior overbite. The animal study demonstrated that transient invalidation of RANKL signaling had an impact on the molar eruption process, the severity of which was dependent on the period of inhibition and was associated with a reduction in two craniofacial morphometric parameters: total skull length and craniofacial vault length. In conclusion, primary retention of molars may be proposed as part of the craniofacial skeleton phenotype associated with a transitory alteration in RANKL signaling during growth.
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32
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Grippaudo C, Cafiero C, D'Apolito I, Re A, Genuardi M, Chiurazzi P, Frazier-Bowers SA. A novel nonsense PTH1R variant shows incomplete penetrance of primary failure of eruption: a case report. BMC Oral Health 2019; 19:249. [PMID: 31730001 PMCID: PMC6858648 DOI: 10.1186/s12903-019-0944-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/31/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Aim of this work was to describe a rare inheritance pattern of Primary Failure of Eruption (PFE) in a small family with incomplete penetrance of PFE and a novel nonsense PTH1R variant. CASE PRESENTATION The proband, a 26 year-old man with a significant bilateral open-bite, was diagnosed with PFE using clinical and radiographic characteristics. DNA was extracted from the proband and his immediate family using buccal swabs and the entire PTH1R coding sequence was analyzed, revealing a novel heterozygous nonsense variant in exon 7 of PTH1R (c.505G > T). This variant introduces a premature stop codon in position 169, predicted to result in the production of a truncated and non-functional protein. This variant has never been reported in association with PFE and is not present in the Genome Aggregation Database (gnomAD). Interestingly, the c.505G > T variant has also been identified in the unaffected mother of our proband, suggesting incomplete penetrance of PFE. CONCLUSIONS In this study, we report a new PTH1R variant that segregates in an autosomal dominant pattern and causes PFE with incomplete penetrance. This underlines the diagnostic value of a thorough clinical and genetic analysis of all family members in order to estimate accurate recurrence risks, identify subtle clinical manifestations and provide proper management of PFE patients.
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Affiliation(s)
- Cristina Grippaudo
- Istituto di Clinica Odontoiatrica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "A.Gemelli" IRCCS, Roma, Italy.
| | - Concetta Cafiero
- Istituto di Clinica Odontoiatrica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "A.Gemelli" IRCCS, Roma, Italy
| | - Isabella D'Apolito
- Istituto di Clinica Odontoiatrica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "A.Gemelli" IRCCS, Roma, Italy
| | - Agnese Re
- Istituto di Fisiologia Umana, Università Cattolica del Sacro Cuore, Roma, Italy.,Istituto di Biologia Cellulare e Neurobiologia, Consiglio Nazionale delle Ricerche (CNR), Roma, Italy
| | - Maurizio Genuardi
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "A.Gemelli" IRCCS, Roma, Italy
| | - Pietro Chiurazzi
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "A.Gemelli" IRCCS, Roma, Italy
| | - Sylvia A Frazier-Bowers
- Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
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33
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Gama A, Perea L, Yepes C, Betancur JJ, Vargas J, Amiaud J, Babajko S, Lezot F, Castaneda B. [Effects of post-natal inhibition of RANKL on molar eruption and root formation in C57BL/6 mice]. Orthod Fr 2019; 90:55-63. [PMID: 30994449 DOI: 10.1051/orthodfr/2019008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 02/10/2019] [Indexed: 11/14/2022]
Abstract
INTRODUCTION Recent observations performed in the orthodontic department of La Pitié-Salpêtrière hospital in Paris reported an increase of non-familial eruption defects of permanent molars. Our recent data have evidenced the involvement of osteoclasts (OC) in both the eruption and the dental retention processes through the RANKL/RANK/OPG signaling pathway. These facts are at the origin of the hypothesis of the existence of an environmental etiology for those eruption defects that would correspond to the perturbation of cellular autocrine/paracrine signaling pathways as the RANKL/ RANK/OPG. MATERIALS AND METHODS C57BL/6 mice were submitted to repeated injections with anti-RANKL neutralizing antibody during the nine days following birth. A phenotypic comparison with transgenic mice overexpressing RANK was performed for the functional characterization of the RANKL/RANK/OPG pathway. The dento-alveolar complex was analyzed using micro-CT for bone density and Masson's trichrome staining for histological examination. RESULTS The RANKL transient invalidation of RANKL stopped the molar root development and tooth eruption contrary to transgenic mice overexpressing RANK. The recruitment and the OC activity were strongly impacted. DISCUSSION This research is of direct clinical interest in understanding the pathology of eruption as indirect in establishing orthodontic treatment protocols for particular cases.
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Affiliation(s)
- Andrea Gama
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Équipe BERDAL, 75006 Paris, France - Laboratoire d'Histopathologie orale, Faculté des sciences de la santé, Université de Brasilia, Brasilia, Brésil
| | - Linamary Perea
- Faculté d'Odontologie, Université d'Antioquia, Medellín, Colombia
| | - Catalina Yepes
- Faculté d'Odontologie, Université d'Antioquia, Medellín, Colombia
| | - Jhon J Betancur
- Faculté d'Odontologie, Université d'Antioquia, Medellín, Colombia
| | - Jorge Vargas
- Faculté d'Odontologie, Université d'Antioquia, Medellín, Colombia
| | - Jerôme Amiaud
- INSERM UMRS 1238, Faculté de Médecine, Nantes, France
| | - Sylvie Babajko
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Équipe BERDAL, 75006 Paris, France
| | | | - Beatriz Castaneda
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Équipe BERDAL, 75006 Paris, France - Service d'Orthopédie Dento-faciale, Hôpital la Pitié Salpêtrière, Paris, France
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34
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Applicability of Demirjian's method for dental age estimation in a group of Egyptian children. BDJ Open 2019; 5:2. [PMID: 30911408 PMCID: PMC6430778 DOI: 10.1038/s41405-019-0015-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/07/2019] [Accepted: 02/12/2019] [Indexed: 11/22/2022] Open
Abstract
Aims The aims of this study were to evaluate the applicability of Demirjian’s method for dental age assessment in a group of Egyptian children in Minia city and to develop an age predictive equation suitable for the studied group. Subjects and methods In this retrospective, blind, cross-sectional study, 160 dental panoramic radiographs (DPTs) were selected from 420 DPTs from healthy children aged between three and 10 years old from the archived medical files of patients attending Minia University Dental Hospital (MUDH) and evaluated to estimate dental ages. Results Age was overestimated for almost all of the studied subjects with an accuracy range from 0.18 to 1.19 years for males and from 0.08 to 0.87 years for females, with the exception of two age subgroups (9–10-year-old males and 10–11-year-old females, for which the mean difference values were −0.06 and −0.008 years, respectively). A Logistic regression was used to generate a suggested formula for dental age estimation. Conclusions Demirjian’s method may be unsuitable for Egyptian children living in Minia city. Development of a predication equation and the introduction of adaptable conversion tables to transform the maturity score into a dental age for Egyptian children may be suitable alternatives. The validity of the newly developed prediction equation must be tested among all Egyptian children.
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Yu X, Liu H, Li C, Du Y, Du Y, Zhang S. Periodontal ligament-associated protein-1 gets involved in the development of osseous eruption canal. J Mol Histol 2018; 50:35-42. [PMID: 30511172 DOI: 10.1007/s10735-018-9805-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 11/28/2018] [Indexed: 01/09/2023]
Abstract
Osseous eruption is an important stage of tooth eruption process. The role of periodontal ligament-associated protein-1 (PLAP-1/asporin) in the development of osseous eruption canal remain undefined and were the focus of this study. C57BL/6 mice at postnatal days P11-13 and P 15-16 were chosen. The development of osseous eruption canal of lower first molar was observed and osteoclasts were detected by staining for tartrate-resistant acid phosphatase (TRAP). PLAP-1 expression in the process of osseous eruption (OE, P11-13) and post- osseous eruption (P-OE, P15-16) was assessed by immunohistochemistry, immunofluorescence and western blotting. Receptor activator of NF-κB ligand (RANKL) distribution in the process was also assessed by immunohistochemistry. A double immunofluorescence stain was used to reveal PLAP-1 in association with CD68 (osteoclast maker). Fresh occlusal tissues of erupting lower first molars at OE and P-OE were separated to detected RANKL/OPG ratio by western blotting to elucidate related mechanisms. At osseous eruption (OE), osseous and mucosal tissues could be observed on the occlusal side of lower first molar. Osseous eruption canal was developing. Many osteoclasts were found around occlusal alveolar bone in the development of osseous eruption canal. At post- osseous eruption (P-OE), osseous eruption canal had been built, only mucosal tissues were observed, and few osteoclasts were detected. More PLAP-1 expression was detected at OE, compared with that at P-OE. Similar distributions of PLAP-1 and RANKL in occlusal bone tissues of erupting lower first molars were detected at OE. Colocalization of PLAP-1 and CD68 revealed the positive relationship between PLAP-1 and osteoclasts in the development of osseous eruption canal. PLAP-1 positively correlated with RANKL and CD68+ osteoclasts, and areas of bone resorption. Higher RANKL/OPG ratio was detected at OE, compared with that at P-OE. PLAP-1 gets involved in the development of osseous eruption canal.
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Affiliation(s)
- Xijiao Yu
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, People's Republic of China
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, 250001, Shandong, People's Republic of China
| | - Hongmei Liu
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, 250001, Shandong, People's Republic of China
| | - Chong Li
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, 250001, Shandong, People's Republic of China
| | - Yanmei Du
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, 250001, Shandong, People's Republic of China
| | - Yi Du
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, 250001, Shandong, People's Republic of China
| | - Shanyong Zhang
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, People's Republic of China.
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