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Rodríguez Torres P, Galparsoro Catalán A, Riad Deglow E, Flores Fraile J, Alonso Pérez-Barquero J, Lobo Galindo AB, Zubizarreta-Macho Á, Hernández Montero S. Digital technique to analyze the wear of screw-retained implant supported metal-ceramic dental prostheses and natural tooth as antagonist: a pilot study. BMC Oral Health 2024; 24:177. [PMID: 38310230 PMCID: PMC10837987 DOI: 10.1186/s12903-024-03881-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 01/10/2024] [Indexed: 02/05/2024] Open
Abstract
The aim of this study was to describe a novel digital technique to analyze the wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth as antagonist.Materials and methods Ten patients were consecutively included to rehabilitate partial edentulism by dental implants. Both the screw-retained implant-supported metal-ceramic dental prostheses and the natural tooth as antagonist were submitted to a digital impression through an intraoral scan to generate a Standard Tessellation Language digital file preoperatively (STL1), at 3 months (STL2), and 6 months (STL3) follow-up. Afterwards, an alignment procedure of the digital files (STL1-STL3) was performed on a reverse engineering morphometric software (3D Geomagic Capture Wrap) and volume changes at the screw-retained implant-supported metal-ceramic dental prostheses and the natural tooth as antagonist were analyzed using Student's t-test. Moreover, Gage R&R statistical analysis was conducted to analyze the repeatability and reproducibility of the digital technique.Results Gage R&R showed a variability attributable to the digital technique of 3.8% (among the measures of each operator) and 4.5% (among operators) of the total variability; resulting repeatable and reproducible, since the variabilities were under 10%. In addition, statistically significant differences were shown at the wear volume (μm3) of both the natural tooth as antagonist (p < 0.0001) and the screw-retained implant-supported metal-ceramic dental prostheses between 3- and 6-months follow-up (p = 0.0002).Conclusion The novel digital measurement technique results repeatable and reproducible to analyze the wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth as antagonist.
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Affiliation(s)
- Paulina Rodríguez Torres
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691, Madrid, Spain
| | - Agustín Galparsoro Catalán
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691, Madrid, Spain
| | - Elena Riad Deglow
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691, Madrid, Spain
| | - Javier Flores Fraile
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37008, Salamanca, Spain
| | - Jorge Alonso Pérez-Barquero
- Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010, Valencia, Spain
| | - Ana Belén Lobo Galindo
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37008, Salamanca, Spain
| | - Álvaro Zubizarreta-Macho
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691, Madrid, Spain.
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37008, Salamanca, Spain.
| | - Sofía Hernández Montero
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691, Madrid, Spain
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Fountoulaki G, Thurzo A. Change in the Constricted Airway in Patients after Clear Aligner Treatment: A Retrospective Study. Diagnostics (Basel) 2022; 12:diagnostics12092201. [PMID: 36140602 PMCID: PMC9498122 DOI: 10.3390/diagnostics12092201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/01/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
This retrospective study evaluated changes in the pharyngeal portion of the upper airway in patients with constricted and normal airways treated with clear aligners (Invisalign, Align). Additionally, we assessed the change of tongue position in the oral cavity from a lateral view. Evaluation was performed with specialized software (Invivo 6.0, Anatomage) on pretreatment and post-treatment pairs of cone beam computed tomography imaging (CBCT) data. The level of airway constriction, volume, cross-section minimal area and tongue profile were evaluated. Patients with malocclusion, with pair or initial and finishing CBCT and without significant weight change between the scans, treated with Invisalign clear aligners were distributed into two groups. Group A consisted of fifty-five patients with orthodontic malocclusion and constricted upper airway. Control group B consisted of thirty-one patients with orthodontic malocclusions without any airway constriction. In the group with airway constriction there was a statistically significant increase in volume during therapy (p < 0.001). The surface of the most constricted cross-section of the airway did not change significantly after treatment in any of the groups. The final tongue position was different from the initial position in 62.2% of all clear aligner treatments. The position of the smallest clearance of the airway in the pharynx was similar for both groups localized at the level of 2nd cervical vertebra.
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Affiliation(s)
- Georgia Fountoulaki
- Department of Stomatology and Maxillofacial Surgery, Faculty of Medicine, Comenius University in Bratislava, 81250 Bratislava, Slovakia
- Correspondence: (G.F.); (A.T.)
| | - Andrej Thurzo
- Department of Stomatology and Maxillofacial Surgery, Faculty of Medicine, Comenius University in Bratislava, 81250 Bratislava, Slovakia
- Department of Simulation and Virtual Medical Education, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 81272 Bratislava, Slovakia
- Correspondence: (G.F.); (A.T.)
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