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Item Metadata only Tooth discoloration by 3Mix-MP as intracanal medication / Alouna Vilaylack(Mahidol University. Mahidol University Library and Knowledge Center, 2011) Alouna Vilaylack; Jeeraphat Jantarat; Supachai Sutimuntanakul; Mansuang ArksornnukitItem Metadata only Esthetic Outcome of a Universal Shade Resin Composite Placed Before Nonvital Tooth Bleaching(2025-05-01) Ruaydee T.; Saikaew P.; Panpisut P.; Kawamoto C.; Tomokiyo A.; Sano H.; Ruaydee T.; Mahidol UniversityOBJECTIVE: In this case report, we describe the use of a universal shade resin composite to restore a discolored tooth before nonvital tooth bleaching. The intent of this procedure is to maintain an acceptable color match, eliminating the need... for subsequent replacement of the restoration after bleaching. METHODS: A substantial defective Class IV resin composite was removed from a discolored, endodontically treated tooth #8. The existing gutta percha was sealed with glass ionomer, and 35% ThanawatItem Metadata only Materials for teeth bleaching(2022-01-01) Rokaya D.; Amornvit P.; Skallevold H.E.; Trinh H.A.; Imran E.; Al-Quraini A.A.A.; Khurshid Z.; Mahidol UniversityThe history of dental tooth bleaching stretches over a century. Material based on peroxides is used to remove intrinsic and extrinsic stains and tooth discoloration. Various bleaching agents have been used clinically. Gel formulations of hydrogen... and carbamide peroxide are the most used in the clinic today. The bleaching effect of these formulations on the tooth is mostly dependent on time and concentration. This chapter focuses on materials for tooth bleaching and presents recent developmentsItem Metadata only A Retrospective Clinical Study on Factors Influencing the Failure of NCCL Restorations(2022-01-01) Saengnil W.; Anuntasainont M.; Srimaneekarn N.; Miletic V.; Pongprueksa P.; Mahidol Universityclinical recall evaluation. A retrospective study was performed with two experienced calibrated examiners to evaluate NCCL restorations, including the critical parameters of retention, caries, marginal discoloration, and marginal integrity. The factors... related to the restoration included gender, age, arch site, tooth position, the presence of occlusal wear facets, caries risk, operator, adhesive strategy, and composite. The clinical failure comparison between the parameters and factors was performedPublication Open Access Clinical evaluation of class II high-viscosity glass ionomer cement and composite resin restorations in primary molars: one year result.(2014-05) Araya Phonghanyudh; อารยา พงษ์หาญยุทธ; Chutima Theerareungchaisri; ชุติมา ธีระเรืองไชยศรี; Varangkana Jirarattanasopa; วรางคณา จิรรัตนโสภา; Araya Phonghanyudh; อารยา พงษ์หาญยุทธ; Mahidol University. Faculty of Dentistry. Department of Pediatric DentistryObjective: To evaluate the clinical and radiographic performances of highly viscous glass ionomer cement (GIC) and composite resin (CR) class II restorations in primary molars at 12-month follow-up. Materials and methods: Fifty-five pairs of primary molars with proximal dentin carious lesions in 37 children, aged 6-9 years, were studied. A split-mouth technique was designed. The teeth were randomly divided into 2 groups of restorative materials: highly viscous GIC ( Fuji IX GP:GC Co., Tokyo, Japan) and CR ( Filtek Z250:3M ESPE, St. Paul, U.S.A.). The restorations were evaluated clinically at 6 and 12 months following modified USPHS criteria. Bitewing radiographs were assessed at 12-month follow-up. All parameters of clinical and radiographic performances between the two groups were tested by Wilcoxon matched-pair signed-rank test. Results: The cumulative failure rates of GIC and CR restorations at 12-month follow-up were 2.08% and 4.41% respectively. There was no statistically significant difference in the failure rate of both materials. There were no statistically significant differences in the clinical and radiographic performances between the two groups. All parameters both clinical and radiographical were similar between GIC and CR restorations. Conclusion: Highly viscous glass ionomer cement and composite resin were highly effective materials for class II restoration in primary molars from 12- month results.Item Metadata only Quantitative analysis of Streptococcus mutans, Bifidobacterium, and Scardovia Wiggsiae in occlusal biofilm and their association with Visible Occlusal Plaque Index (VOPI) and International Caries Detection and Assessment System (ICDAS)(2024-01-01) Thitisakyothin P.; Chanrat S.; Srisatjaluk R.L.; Mitrakul K.; Thitisakyothin P.; Mahidol University–3 (0 = sound tooth surface, 1 = opacity or discoloration of enamel after air drying, 2 = visual change in enamel when wet, and 3 = localised enamel breakdown). Methods: DNA was extracted from plaque samples and performed quantitative real-time PCRPublication Open Access Effect of the shades of background substructures on the overall color of zirconia-based all-ceramic crowns.(2013-08) Kallaya Suputtamongkol; กัลยา ศุพุทธมงคล; Chantana Tulapornchai; ฉันทนา ตุลาพรชัย; Jatuphol Mamani; Wannaporn Kamchatphai; วรรณพร กำจัดภัย; Noparat Thongpun; นพรัตน์ ทองพันธ์; Kallaya Suputtamongkol; กัลยา ศุพุทธมงคล; Mahidol University. Faculty of Dentistry. Prosthodontics DepartmentPURPOSE: The objective of this study was to determine the effect of the color of a background substructure on the overall color of a zirconia-based all-ceramic crown. MATERIALS AND METHODS: Twenty one posterior zirconia crowns were made for twenty subjects. Seven premolar crowns and six molar crowns were cemented onto abutments with metal post and core in the first and second group. In the third group, eight molar crowns were cemented onto abutments with a prefabricated post and composite core build-up. The color measurements of all-ceramic crowns were made before try-in, before and after cementation. A repeated measure ANOVA was used for a statistical analysis of a color change of all-ceramic crowns at α=.05. Twenty four zirconia specimens, with different core thicknesses (0.4-1 mm) were also prepared to obtain the contrast ratio of zirconia materials after veneering. RESULTS: L(*) , a(*) , and b(*) values of all-ceramic crowns cemented either on a metal cast post and core or on a prefabricated post did not show significant changes (P>.05). However, the slight color changes of zirconia crowns were detected and represented by ΔE(*) ab values, ranging from 1.2 to 3.1. The contrast ratios of zirconia specimens were 0.92-0.95 after veneering. CONCLUSION: No significant differences were observed between the L(*) , a(*) , and b(*) values of zirconia crowns cemented either on a metal cast post and core or a prefabricated post and composite core. However, the color of a background substructure could affect the overall color of posterior zirconia restorations with clinically recommended core thickness according to ΔE(*) ab values.Publication Open Access Clinical performance and wear characteristics of veneered lithia-disilicate-based ceramiccrowns.(2008-05) Kallaya Suputtamongkola; Anusavice, Kenneth J.; Chatcharee Suchatlamponga; Phira Sithiamnuaia; Chantana Tulapornchai; กัลยา ศุพุทธมงคล; ชัชรี สุชาติล้ำพงศ์; พีระ สิทธิอำนวย; ฉันทนา ตุลาพรชัย; Kallaya Suputtamongkol; กัลยา ศุพุทธมงคลObjectives. The objectives of this study were to characterize the clinical performance and wear characteristics of lithia-disilicate-based ceramic crowns. Methods. Thirty posterior crowns were made using the heat-pressing technique and lithiadisilicate- based core ceramic. Subjects were recalled annually. The quality of crowns and adjacent gingival tissueswere examined using nine criteria for acceptability. All crownswere examined and ranked from 4 (Excellent) to 1 (Unacceptable) for each criterion. Impressions were made for replica models at each appointment. Wear characteristics of dental ceramic and enamelwere obtained by comparing the surface of the original model with the follow-up model using a laser scanner. Results. Twenty-nine subjects returned for the 1-year recall examination. The maximum clenching force for the 30 subjects ranged from 125 to 815N. All clinical criteria were ranked good to excellent at the 1-year recall exam and no fractures were observed. The mean occlusal wear volumes for the ceramic crowns after 1 year were 0.19 (0.065)mm3 for premolar sites and 0.34 (0.08)mm3 for molar sites. The mean occlusal wear volumes of opposing enamel after 1 year were 0.21 (0.06)mm3 for premolar teeth and 0.50 (0.22)mm3 for molar teeth. The mean occlusal wear volume of ceramic molar crowns was significantly lower than the volume of enamel wear of the opposing teeth (p?0.05). Conclusions. The quality of the overall prostheses and the gingival tissues were acceptable after 1 year. The mean occlusal wear volume of ceramic molar crowns was significantly lower than the enamel wear volume of the opposing teeth.Publication Open Access Prosthetic rehabilitation of orbital defects: A review of 110 cases.(2014-09) Sita Thaworanunta; สิตา ถาวรนันท์; Theerathavaj Srithavaj; ธีรธวัช ศรีธวัช; Shrestha, Binit; Shrestha, Binit; Mhidol University. Faculty of Dentistry. Department of Prosthodonticsdiscoloration of the prosthesis, open or torn margins, and acrylic housing dislodgment. Conclusion: The use of silicone prosthesis can be a safe, predictable and aesthetic treatment option for rehabilitation of orbital defects. However, focus on patientPublication Open Access รอยคราบสีดำบนฟันบริเวณเหนือขอบเหงือกในเด็ก(2011-09) เข็มทอง มิตรกูล; Kemthong Mitrakul; เข็มทอง มิตรกูล; Kemthong Mitrakul; มหาวิทยาลัยมหิดล. คณะทันตแพทยศาสตร์. ภาควิชาทันตกรรมเด็กBlack tooth stain is one of common problems in pediatric dentistry. Even though it does not result in pain but it associates with esthetic which most parents are concern about. In this article, etiology, prevalence, possible causes, associated