1
|
Gharechahi M, Kafi MH, Javidi M, Jafari N, Joibary Moghaddam M. The Efficacy of Different Antibiotic Compounds in Regenerative Treatment of Immature Necrotic Teeth. Front Dent 2024; 21:1. [PMID: 38571897 PMCID: PMC10985510 DOI: 10.18502/fid.v21i1.14638] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/10/2023] [Indexed: 04/05/2024] Open
Abstract
Objectives: Endodontic treatment of immature teeth poses a significant challenge, especially in achieving a proper seal using traditional obturation methods. Revascularization presents itself as an alternative approach to this problem, and the application of triple antibiotic paste (TAP) has been suggested as a means to achieve disinfection during the procedure. This study aims to compare the antibacterial properties of three different antibiotic combinations to assess their effectiveness on root canal disinfection. Materials and Methods: Eighty samples were employed to assess the impact of three antibiotic combinations on Enterococcus faecalis, Escherichia coli, Streptococcus mutans, and a combination thereof. The antibiotics included metronidazole, ciprofloxacin, and cefaclor (CCM), the commonly used TAP, and a double antibiotic paste (DAP) composed of metronidazole and ciprofloxacin. Dentin shavings collected using Gates-Glidden drills were placed in microtubes containing a 2ml standard bacterial suspension. Microtube contents were diluted and cultured on BHI agar plates, with colony counts calculated based on dentine shavings' weight in CFU/mg. Kruskal-Wallis and Dunn's post-hoc tests were used for statistical analysis and P<0.05 was considered significant. Results: A significant difference in mean CFU was observed among all bacterial groups (P<0.05). Dunn's post-hoc analysis showed a significant difference only between the control group (methylcellulose) and the other antibiotic groups. There was no significant difference between the other antibiotic groups in two-by-two comparisons. Conclusion: There was no significant difference in the antimicrobial properties of DAP, TAP and CCM. Therefore, DAP and CCM may be used during regenerative treatment.
Collapse
Affiliation(s)
- Maryam Gharechahi
- Dental Materials Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Hossein Kafi
- Department of Endodontics, School of Dentistry, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Maryam Javidi
- Dental Materials Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Niloufar Jafari
- Department of Operative Dentistry, School of Dentistry, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Maryam Joibary Moghaddam
- Dental Materials Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
2
|
Hooshyarfard A, Poormoradi B, Olad F, Shahbazi A, Cheraghi Z. Comparative Effects of Kemphor and Chlorhexidine Mouthwashes on Tooth Staining and Gingivitis: A Randomized Controlled Crossover Clinical Trial. Front Dent 2022; 19:30. [PMID: 36865950 PMCID: PMC9971648 DOI: 10.18502/fid.v19i30.10802] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/15/2022] [Indexed: 03/04/2023] Open
Abstract
Objectives: Considering the side effects of chlorhexidine (CHX), which is currently the gold-standard antimicrobial mouthwash, this study aimed to compare the effects of Green Kemphor and CHX mouthwashes on tooth staining and gingivitis. Materials and Methods: This randomized controlled crossover clinical trial evaluated 38 patients requiring CHX mouthwash following oral surgery and periodontal therapy. The patients were randomly assigned to CHX and Kemphor groups (n=19). In CHX group, patients used CHX mouthwash in the first 2 weeks, and after a 4-day washout period, they used Kemphor mouthwash for 2 weeks. This order was reverse in the Kemphor group. Gingivitis was evaluated using the Silness and Loe gingival index (GI), and tooth staining was evaluated by the Lobene index at 0 (baseline), 2 and 4 weeks. Data were analyzed by paired t-test. Results: CHX mouthwash significantly decreased the GI and increased tooth staining (gingival stains, body stains, and stain extent) at 2 weeks (P<0.05). Kemphor mouthwash significantly decreased the GI and increased tooth staining after 2 weeks (P<0.05). The GI in Kemphor group was significantly lower than that in CHX group at 4 weeks (P<0.05). Also, the tooth staining parameters in the Kemphor group were significantly lower than the corresponding values in the CHX group at 2 and 4 weeks (P<0.05). Conclusion: Kemphor had higher efficacy for reduction of GI and caused less tooth staining than CHX; thus, it may be recommended for use as an alternative to CHX.
Collapse
Affiliation(s)
- Amirarsalan Hooshyarfard
- Dental Materials Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran,Department of Periodontics, Faculty of Dentistry, Shahed University, Tehran, Iran
| | - Banafsheh Poormoradi
- Laser Research Center, Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran,Corresponding author: Laser Research Center, Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran.
| | | | - Armaghan Shahbazi
- Department of Prosthodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zahra Cheraghi
- Modeling of Noncommunicable Diseases Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| |
Collapse
|
3
|
Nagas E, Ertan A, Eymirli A, Uyanik O, Cehreli ZC. Tooth Discoloration Induced by Different Calcium Silicate-Based Cements: A Two-Year Spectrophotometric and Photographic Evaluation in Vitro. J Clin Pediatr Dent 2021; 45:112-6. [PMID: 33951168 DOI: 10.17796/1053-4625-45.2.7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Calcium silicate-based cements (CSCs) may lead to coronal staining in young permanent teeth over the time. The purpose of this study was to evaluate and compare the long-term tooth discoloration induced by different CSCs. STUDY DESIGN Ninety freshly-extracted human molars were assigned randomly into 6 groups (n=15/group) according to the CSC used as a pulpotomy material: ProRoot MTA, MTA Angelus, NeoMTA, EndoSequence Putty, Biodentine and Negative control (No cement). The color was assessed at baseline, and thereafter at 3, 6, 12 and 24 months by using both a spectrophotometer and digital images taken with and without a cross-polarizing filter. The time-dependent changes in color (ΔE) were compared within and among groups using Analysis of Variance. RESULTS Angelus MTA and ProRooT MTA showed severe coronal discoloration (p>0.05) starting at 3 months. ΔE values of NeoMTA, EndoSequence Bioceramic Putty and Biodentine were below the perceptibility threshold, with Biodentine showing greater ΔE values than NeoMTA and EndoSequence Putty in the absence of statistical significance (p>0.05). CONCLUSIONS Discoloration elicited by CSCs may develop soon after placement, and continue to increase for up to two years. Angelus MTA and ProRooT MTA cannot be recommended for vital pulp therapies in the esthetic zone of young individuals.
Collapse
|
4
|
Haghighi AHS, Emami M, Fakhri E, Rezaei Y. Effects of Orthodontic Adhesives on Dental Enamel Color Alteration Using Chemically Cured and Light-Cured Composites. Front Dent 2021; 17:1-9. [PMID: 33615289 PMCID: PMC7883653 DOI: 10.18502/fid.v17i13.4176] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 07/23/2020] [Indexed: 11/24/2022] Open
Abstract
Objectives: The purpose of this investigation was to evaluate the color alteration of dental enamel following the use of light-cured and chemically cured composites for bonding of metal brackets. Materials and Methods: Sixty extracted human premolars divided into five groups (n=12) were included in this study. Metal brackets were bonded using chemically cured (System 1+ and Unite) and light-cured (Transbond XT and Grengloo) composites. The control group remained untreated. After 72 hours of immersion in a staining solution and 24 hours of photoaging, the brackets were debonded, and adhesive remnants were cleaned using a 12-blade tungsten carbide bur and polished with Sof-Lex discs. The color was assessed at the baseline and after cleaning procedures in accordance with the CIE L*a*b (lightness, red/green, blue/yellow) color system. Statistical analyses were performed using paired sample t-test and one-way analysis of variance (ANOVA). Results: The L*, a*, and b* parameters showed a significant increase in all adhesive groups (P<0.001). The experimental groups showed significant color changes (P<0.05), and the mean ΔE ranged from 2.46 to 3.15 units. No significant difference was found between the ΔE of the adhesive groups (P>0.05). Conclusion: The enamel color change is influenced by bonding and debonding procedures. Chemically cured and light-cured composites have similar effects on dental enamel color alterations.
Collapse
Affiliation(s)
- Amir Houman Sadr Haghighi
- Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Emami
- Dental and Periodontal Research Center, Dentistry Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elaheh Fakhri
- Dental and Periodontal Research Center, Dentistry Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yashar Rezaei
- Department of Dental Biomaterials, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
5
|
Abstract
Objective To describe a form of tooth pigmentation caused by serum bilirubin deposition during dental calcification in a premature child. The bilirubin levels during the three months after birth are presented. In this period the crowns of the primary teeth are still forming. Such anomaly does not have symptoms, but has a displeasing effect and great anxiety within the family. Case report The case reported here highlights the relevance of past medical history, especially the diagnoses of prolonged conjugated hyperbilirubinemia, in this case, to confirm them and to comfort the family. In this case, no esthetic treatment had been undertaken because the child was still too young and not yet concerned. The dental treatment plan included regular checkups every 3 months for maintaining oral health to prevent caries. Conclusion As this is a rare condition that affects the teeth, parents will most likely look for a dentist for treatment. Therefore, dentists must be aware or such abnormalities and take a multidisciplinary approach, thus making it possible to establish a final diagnosis.
Collapse
Affiliation(s)
- Gabriel S Barbério
- Department of Pediatric Dentistry, Bauru School of Dentistry, University of Sao Paulo, Bauru, Brazil
| | - Ana C G Zingra
- Department of Pediatric Dentistry, Bauru School of Dentistry, University of Sao Paulo, Bauru, Brazil
| | - Paulo S S Santos
- Department of Surgery, Stomatology, Pathology and Radiology, Bauru School of Dentistry, University of Sao Paulo, Bauru, Brazil
| | - Maria A A M Machado
- Department of Pediatric Dentistry, Bauru School of Dentistry, University of Sao Paulo, Bauru, Brazil
| |
Collapse
|
6
|
Zarei M, Javidi M, Jafari M, Gharechahi M, Javidi P, Shayani Rad M. Tooth Discoloration Resulting from a Nano Zinc Oxide-Eugenol Sealer. Iran Endod J 2017; 12:74-77. [PMID: 28179929 PMCID: PMC5282384 DOI: 10.22037/iej.2017.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Introduction: A desirable quality of any endodontic sealer is its ability to be tooth color friendly. Therefore the aim of the present study was to evaluate the tooth discoloration potential of a nano zinc oxide-eugenol (NZOE) sealer. Methods and Materials: In order to evaluate tooth discoloration, the pulp chamber of 60 human maxillary central and lateral incisors were filled with one of the sealers, naming AH-26 (resin-based sealer), Pulpdent sealer (ZOE-based) and a NZOE experimental sealer. Color measurements was assessed at the baseline (before placement of sealers) (T0), 24 h (T1) and 72 h (T2) h, 1-week (T3), and 1-month (T4) after the placement of sealers using the Easy Shade spectrophotometer. Data were analyzed in SPSS software using one-way ANOVA, and repeated measured ANOVA. Results: No significant differences were observed when the paired comparison test was performed (P>0.05). Conclusion: The tested NZOE sealer had similar tooth discoloration potential in comparison with AH-26 and ZOE sealer.
Collapse
Affiliation(s)
- Mina Zarei
- Dental Research Center, Department of Endodontics, Dental School, Mashhad University of Medical Science, Mashhad, Iran
| | - Maryam Javidi
- Dental Research Center, Department of Endodontics, Dental School, Mashhad University of Medical Science, Mashhad, Iran
| | - Marzieh Jafari
- Dental school, North Khorasan University of Medical Science , Bojnurd, Iran
| | - Maryam Gharechahi
- Dental Materials Research Center, Department of Endodontics, Dental School, Mashhad University of Medical Science, Mashhad, Iran
| | - Pedram Javidi
- Department of Orthodontics, Dental School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Shayani Rad
- Student Research Committee (SRC), Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
7
|
Abstract
Tooth discoloration induced by endodontic sealers, is a common finding that impairs aesthetic outcome of endodontic treatment. The aim of the present mini literature review, was to summarize the existing data on discoloration potential of different endodontic sealers. The research covered the article published in PubMed and Google Scholar from 2000 to 2015. The searched keywords included ‘tooth discoloration AND endodontic’, ‘tooth discoloration AND sealer, ‘tooth discoloration AND zinc-oxide eugenol sealer’, ‘tooth discoloration AND Calcium Hydroxide Sealer’, ‘tooth discoloration AND Glass Ionomer Sealer’, ‘tooth discoloration AND epoxy-resin Sealer’, ‘tooth discoloration AND Silicon Based Sealer’, ‘tooth discoloration AND Bioceramic Sealer’ and ‘Spectrophotometry’.
Collapse
Affiliation(s)
- Sohrab Tour Savadkouhi
- Department of Endodontics, Dental Branch, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Mahta Fazlyab
- Department of Endodontics, Dental Branch, Islamic Azad University of Medical Sciences, Tehran, Iran;; Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
8
|
Rouhani A, Akbari M, Farhadi-Faz A. Comparison of Tooth Discoloration Induced by Calcium-Enriched Mixture and Mineral Trioxide Aggregate. Iran Endod J 2016; 11:175-8. [PMID: 27471526 PMCID: PMC4947839 DOI: 10.7508/iej.2016.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 03/23/2016] [Accepted: 04/05/2016] [Indexed: 12/04/2022]
Abstract
Introduction: The aim of this in vitro study was to evaluate the tooth discoloration induced by calcium-enriched mixture (CEM) cement and mineral trioxide aggregate (MTA). Methods and Materials: Forty five endodontically treated human maxillary central incisors were selected and divided into three groups (n=15) after removing the coronal 3 mm of the obturating materials. In the MTA group, white MTA plug was placed in pulp chamber and coronal zone of the root canal. In CEM cement group, CEM plug was placed in the tooth in the same manner. In both groups, a wet cotton pellet was placed in the access cavity and the teeth were temporarily sealed. After 24 h the teeth were restored with resin composite. In the negative control group the teeth were also restored with resin composite. The color change in the cervical third of teeth was measured with a colorimeter and was repeated 3 times for each specimen. The teeth were kept in artificial saliva for 6 months. After this period, the color change was measured again. Data were collected by Commission International de I'Eclairage's L*a*b color values, and corresponding ΔE values were calculated. The results were analyzed using the one-way ANOVA and post-hoc Tukey’s test with the significance level defined as 0.05. Results: There was no significant differences between CEM group and control group in mean discoloration. The mean tooth discoloration in MTA group was significantly greater than CEM and control groups (P<0.05). Conclusion: According to the result of the present study CEM cement did not induce tooth discoloration after six months. Therefore it can be used in vital pulp therapy of esthetically sensitive teeth.
Collapse
Affiliation(s)
- Armita Rouhani
- Department of Endodontics, Dental Research Center, Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Akbari
- Department of Restorative Dentistry, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Aida Farhadi-Faz
- Department of Endodontics, Kerman University of Medical Sciences, Kerman, Iran
| |
Collapse
|
9
|
Esmaeili B, Alaghehmand H, Kordafshari T, Daryakenari G, Ehsani M, Bijani A. Coronal Discoloration Induced by Calcium-Enriched Mixture, Mineral Trioxide Aggregate and Calcium Hydroxide: A Spectrophotometric Analysis. Iran Endod J 2015; 11:23-8. [PMID: 26843873 PMCID: PMC4731529 DOI: 10.7508/iej.2016.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/16/2015] [Accepted: 09/01/2015] [Indexed: 11/30/2022]
Abstract
Introduction: The aim of this study was to compare the discoloration potential of calcium-enriched mixture (CEM) cement, white mineral trioxide aggregate (WMTA) and calcium hydroxide (CH), after placement in pulp chamber. Methods and Materials: Access cavities were prepared in 40 intact maxillary central incisors. Then, a 2×2 mm box was prepared on the middle third of the inner surface on the buccal wall of the access cavity. The specimens were randomly assigned into four groups; the boxes in the control group were left empty, in groups 1 to 3, the boxes were filled with CH, WMTA and CEM cement, respectively. The access cavities and the apical openings were sealed using resin modified glass ionomer (RMGI). The color measurement was performed with a spectrophotometer at the following intervals: before (T0), immediately after placement of the filling material (T1), one week (T2), 1 month (T3), 3 months (T4) and 5 months (T5) after filling of the box and finally immediately after removing the material from the boxes (T6). Color change (ΔE) values were calculated using the sample Kolmogorov-Smirnov test to determine the normal distribution of data, followed by ANOVA, repeated measured ANOVA and post-hoc Tukey’s tests. Results: All materials led to clinically perceptible crown discoloration after 1 week. The highest ΔE value belonged to WMTA group. Discoloration induced by CEM cement was not significantly different from CH or the control group (P>0.05). Conclusion: CEM cement may be the material of choice in the esthetic region, specifically pertaining to its lower color changing potential compared to WMTA.
Collapse
Affiliation(s)
- Behnaz Esmaeili
- Dental Materials Research Center, Department of Operative Dentistry, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Homayoun Alaghehmand
- Dental Materials Research Center, Department of Operative Dentistry, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Tavoos Kordafshari
- Department of Operative dentistry, Dental School, Golestan University of Medical Sciences, Golestan, Iran
| | - Ghazaleh Daryakenari
- Dental Materials Research Center, Department of Operative Dentistry, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Ehsani
- Department of Endodontics, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Ali Bijani
- Health Research Center, Babol University of Medical Sciences, Babol, Iran
| |
Collapse
|
10
|
Malek Afzali B, Ghasemi A, Mirani A, Abdolazimi Z, Akbarzade Baghban A, Kharazifard MJ. Effect of Ingested Liquids on Color Change of Composite Resins. J Dent (Tehran) 2015; 12:577-84. [PMID: 27123017 PMCID: PMC4847163] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
OBJECTIVES Color change of composite restorations is well known to dentists. However, the effect of commonly consumed drinks on discoloration of composite resins has yet to be determined. This study sought to assess the color change of a nanofilled (Premise) and a flowable composite resin (Premise flowable) following simulated consumption of tea, cola, iron drops and multivitamin syrup. MATERIALS AND METHODS Forty disk-shaped specimens (7 mm in diameter and 2 mm thick) were fabricated from each composite resin. The baseline color values were measured according to the CIE L*a*b* system using digital imaging. The specimens of each restorative material were randomly divided into five groups (eight each) according to the storage media namely tea, cola, iron drops, multivitamin syrup or distilled water (control). The specimens were immersed in staining solutions for three hours daily over a 40-day test period. Following this, the color change values (ΔE*) were calculated. For statistical analyses, the color differences were analyzed using two-way ANOVA and Tukey's test (P< 0.05). RESULTS There was no significant difference in ΔE* values between the two types of composite resins (P>0.05). In both composite materials, the difference among the solutions was not significant (P>0.05). CONCLUSION Under the tested experimental conditions, both restorative materials were susceptible to discoloration by all four staining solutions. The color change values were not related to the solution or the type of material used.
Collapse
Affiliation(s)
- Beheshteh Malek Afzali
- Associate Professor, Department of Pedodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Ghasemi
- Associate Professor, Department of Restorative Dentistry, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Zahra Abdolazimi
- Postgraduate Student of Pediatric Dentistry, Dental School, Shahid Beheshti University of Medical Sciences, Tehran- Iran,Corresponding author: Z. Abdolazimi, Department of Pediatric Dentistry, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran,
| | - Alireza Akbarzade Baghban
- PhD in Biostatistics, Associate Professor, Department of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Javad Kharazifard
- Epidemiologist, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Statistical and Methodology Department, Dental School, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
11
|
Kinoshita JI, Jafarzadeh H, Manabe A, Nozawa M, Uchida T, Abbott PV. Effects of KTP Laser Bleaching on Traumatized Tooth Enamel. Trauma Mon 2014; 19:e18168. [PMID: 25032154 PMCID: PMC4080620 DOI: 10.5812/traumamon.18168] [Citation(s) in RCA: 5] [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: 02/11/2014] [Accepted: 03/03/2014] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Bleaching of traumatized discolored teeth is considered an important issue in esthetic dentistry. Various methods have been introduced for bleaching, some of which may have adverse effects on soft or hard tissues of the tooth. OBJECTIVES The objective of the study was to evaluate the effects of KTP laser bleaching on enamel of traumatized teeth. MATERIALS AND METHODS A square of 36 mm(2) was chosen on the labial surface of 32 extracted teeth. The corners were drilled in order to indicate the location precisely. The shade of each sample was recorded and the teeth were divided into four groups, each with eight teeth: group A (Smartbleach with KTP laser for 30 seconds), group B (Smartbleach with G-Light for 5 minutes), group C (only Smartbleach for 10 minutes) and group D (control group with no bleaching). After one session of bleaching, shade assessment was performed again. In another experiment on nine teeth, Smartbleach with KTP laser was used for 150 seconds to 1500 seconds. The samples were critically processed and observed by using scanning electron microscope (SEM) to assess enamel damage. Data was statistically analyzed using Kruskal-Wallis test (confidence interval level were set at 95%). RESULTS Smartbleach was highly effective when used with KTP laser (P = 0.0419). Enamel damage was observed after frequent KTP bleaching and 750 seconds of KTP bleaching was recognized as the limit by morphological evaluation via SEM, indicating a major difference between under and over 750 seconds of bleaching. CONCLUSIONS Application of KTP laser may increase the bleaching effect of Smartbleach, nevertheless it may cause some enamel damage.
Collapse
Affiliation(s)
- Jun-Ichiro Kinoshita
- Department of Esthetic Dentistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Hamid Jafarzadeh
- Dental Research Center, Department of Endodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, IR Iran
- Corresponding author: Hamid Jafarzadeh, Dental Research Center, Department of Endodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, P.O.Box: 91735-984, Mashhad, IR Iran. Tel.: +98-5118829501, Fax: +98-5118829500, E-mail:
| | - Atsufumi Manabe
- Department of Esthetic Dentistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Miki Nozawa
- Department of Clinical Cariology and Endodontology, School of Dentistry, Showa University, Tokyo, Japan
| | - Tokiko Uchida
- Department of Clinical Cariology and Endodontology, School of Dentistry, Showa University, Tokyo, Japan
| | | |
Collapse
|
12
|
Zare Jahromi M, Navabi AA, Ekhtiari M. Comparing Coronal Discoloration Between AH26 and ZOE Sealers. Iran Endod J 2011; 6:146-9. [PMID: 23130069 PMCID: PMC3471592] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 08/15/2011] [Accepted: 09/02/2011] [Indexed: 11/03/2022]
Abstract
INTRODUCTION Intrinsic tooth discolorations after endodontic treatment are principally attributed to the composition of necrotic pulp tissue, hemorrhage within the pulp cavity, endodontic medicaments and/or filling materials. Residual sealer left in pulp chamber after obturation can cause discoloration. The objective of this in vitro study was to evaluate coronal discoloration created by AH26 and ZOE sealers after four months. MATERIALS AND METHODS Fifty intact human extracted maxillary central incisors were employed. Access cavities were prepared in all samples and root canals were instrumented; coronal orifices were then sealed using self-cure glass ionomer. The teeth were divided into two experimental groups (n=20) according to utilized sealer in pulp chambers including AH26 and Dorifill (ZOE). The remaining 10 teeth served as negative and positive controls (n=5). The access cavities were sealed with self-cure glass ionomer. Teeth were kept in incubator for four month. Preliminary digital images of the teeth were taken and then compared with those related to 4-month follow-up. The images were assessed using Photoshop software. Data was analyzed using paired t-test and independent samples t-test. RESULTS The teeth which were filled with AH26 sealer showed significantly greater discoloration than those filled with ZOE sealer (Dorifill) (P<0.05). CONCLUSION AH26 sealer causes greater discoloration of the crown compared to ZOE sealer. Despite the other disadvantage of AH26 sealer, it seems that Dorifill is more esthetically considerate.
Collapse
Affiliation(s)
- Maryam Zare Jahromi
- Department of Endodontics, Dental School, Islamic Azad University of Medical Sciences, Khorasgan Branch, Isfahan, Iran.,Corresponding author at: Maryam Zare Jahromi, Department of Endodontics, Faculty of Dentistry, Islamic Azad University of Medical Sciences, Khorasgan Branch, East Jey Avenue, Arghavaniye St., Isfahan, Iran. Tel.: +98-9133079303, E-mail:
| | - Amir Arsalan Navabi
- Islamic Azad University of Medical Sciences, Khorasgan Branch, Isfahan, Iran
| | | |
Collapse
|