Advanced restorative management of focal microdontia: A brief review and case report.

Focal microdontia is a dental anomaly characterized by the presence of a single abnormally small anterior or posterior tooth. The objective of this article is to provide an updated review of the literature on the advanced restorative management of focal microdontia, and to document a clinical case where the reviewed advanced restorative approaches were applied to treat a young adult presenting with a non-syndromic asymmetrical focal microdontia.We conducted a preliminary examination of the existing literature on the advanced restorative management of focal microdontia. Additionally, we presented a minimally invasive approach to the treatment of an 18-year-old female patient with non-syndromic asymmetrical focal microdontia. The primary advantage of adhesive dentistry is that it can better preserve the structure of smaller teeth. A review of literature reveals a paucity of reports on localized microdontia in the maxillary anterior region of the mouth. However, novel minimally invasive restorative procedures satisfy patients' aesthetic and functional preferences. Well-executed additive diagnostic wax-ups and intraoral mock-ups can serve as a permanent restoration blueprint, providing predictable results for focal dental anomalies in the aesthetic zone. In conclusion, the use of minimally invasive dental approaches in young patients with focal microdontia can result in long-term satisfactory aesthetic outcomes.

Immediate implant placement with soft tissue grafting and an ultra-translucent zirconia crown. Replacement of a primary tooth in the esthetic zone

OBJECTIVES: The present case report describes the atraumatic extraction of a primary maxillary right canine followed by immediate implant placement with a customized zirconia abutment and monolithic ultra-translucent zirconia (5Y-PSZ) crown. CLINICAL CONSIDERATIONS: A 31-year-old patient presented to the clinic with the primary concern of mobility and gingival inflammation around the maxillary right canine. After clinical evaluation, the tooth was found to be a primary retained tooth that presented grade 3 mobility and gingival inflammation. Atraumatic tooth extraction was performed, followed by immediate implant placement of a screw-retained provisional restoration with the use of a surgical guide. The soft tissue was contoured until ideal architecture was obtained. The final restoration included a customized zirconia and titanium abutment and a characterized implant-supported monolithic 5Y-PSZ crown. CONCLUSIONS: Well-planned surgical and restorative procedures including atraumatic extraction, 3D implant planning for surgical guide fabrication, implant placement, and a customized zirconia abutment with a monolithic 5Y-PSZ crown can achieve high esthetic results in replacing a primary tooth in the esthetic zone.

Fracture Resistance of Chairside CAD/CAM Molar Crowns Fabricated with Different Lithium Disilicate Ceramic Materials

PURPOSE: To compare the fracture resistance of five different groups of chairside CAD/CAM molar crowns fabricated from various lithium disilicate ceramic materials (LDC): one conventional precrystallized CAD/CAM LDC, two novel precrystallized LDCs, and one fully crystallized LDC tested both with and without optional sintering. MATERIALS AND METHODS: A total of 60 chairside CAD/CAM lithium disilicate molar crowns (n = 12 per group) with 1.5-mm occlusal thickness and a 1.0-mm chamfer finish were designed and fabricated with a chairside CAD/CAM system (CEREC, Dentsply Sirona). The restorations were divided into five groups: (1) IPS e.max CAD; (2) Amber Mill; (3) Straumann n!ce; (4) Straumann n!ce with optional sintering; and (5) Supreme CAD. Restorations were cemented using conventional resin luting cement and primer system to 3D-printed resin dies. Bonded restorations were loaded for 100,000 cycles with 275-N force, and the load at break (LB) and peak load (PL) until fracture were measured. SEM images of fracture surfaces on the printed dies were obtained. RESULTS: Fracture resistance was significantly different depending on the material. Supreme CAD showed the highest fracture resistance (LB: 1,557.2 N; PL: 1,785.8 N), followed by Amber Mill (LB: 1,393.0 N; PL: 1,604.2 N) and IPS e.max CAD (LB: 1,315.7 N; PL: 1,461.9 N). Straumann n!ce without (LB: 862.4 N; PL: 942.9 N) and with the optional sintering (LB: 490.4 N; PL: 541.0 N) showed significantly lower fracture resistance than the others. CONCLUSION: The fracture resistance of chairside CAD/CAM lithium disilicate molar crowns varied depending on the material, and the novel materials did not perform as well as the conventional equivalents. Fully crystallized lithium disilicate ceramic block materials showed lower fracture resistance than precrystallized counterparts and should be used with caution in the clinic, especially with optional sintering.

Emotional, behavioral, and social effects of anterior tooth loss: a cross-sectional study / Efeitos emocionais, comportamentais e sociais da perda dentária anterior: um estudo tranversal

Objective: The study aims to evaluate the emotional, behavioural, and social effects of single or multiple anterior tooth loss. It also compares the effectiveness of the removable and fixed prosthesis to address the impact of anterior tooth loss. Material and Methods: The study was carried out on 70 subjects who presented to the Department of Prosthetic Dental Sciences. A questionnaire was distributed and the data were statistically analyzed using SPSS version 18.0 and values less than 0.05 % were considered statistically significant. Results: The participant's difficulty to accept loss of their anterior tooth, embarrassment and confidence were changed significantly after wearing the prosthesis (P< 0.05). Moreover, fixed partial denture had more effect than removal partial denture. It was claimed by 62.9% of the participants that they were not prepared for the effect of tooth loss and 47.1% of them thought that a prior explanation from the dentist would have helped them overcome their fear of losing their teeth. Conclusion: The maximum impact of anterior tooth loss was felt on confidence followed by embarrassment. The participants felt more comfortable after wearing their prosthesis. Fixed partial denture had more effect than removable partial denture.(AU)

Objetivo: O estudo visa avaliar os efeitos emocionais, comportamentais e sociais da perda dentária anterior unitária ou múltipla. Ele também compara a eficácia da protese removível e da fixa para lidar com o impacto da perda dentária anterior. Material e Métodos: O estudo foi realizado em 70 indivíduos que se apresentaram ao Department of Prosthetic Dental Sciences. Foi distribuído um questionário e os dados analisados estatisticamente no SPSS versão 18.0 e valores inferiores a 0,05% foram considerados estatisticamente significativos. Resultados: A dificuldade do participante em aceitar a perda de seu dente anterior, constrangimento e confiança mudaram significativamente após usar a prótese (P <0,05). Além disso, a prótese parcial fixa teve mais efeito do que a prótese parcial removível. Foi alegado por 62,9% dos participantes que não estavam preparados para o efeito da perda dentária e 47,1% deles achavam que uma explicação prévia do cirurgião-dentista os teria ajudado a superar o medo de perder os dentes. Conclusão: O impacto máximo da perda dentária anterior foi sentido na confiança, seguido de constrangimento. Os participantes se sentiram mais confortáveis após o uso de suas próteses. A prótese parcial fixa teve mais efeito do que a prótese parcial removível (AU)