Bonfante, Estevam A.
Bergamo, Edmara T. P.
Número total de Autores: 6
Afiliação do(s) autor(es):
 Univ Sao Paulo, Bauru Sch Dent, Dept Prosthodont & Periodontol, 9-75 Octavio Pinheiro Brisolla, BR-17012901 Bauru, SP - Brazil
 Implant Dent Ctr, Boston, MA - USA
 Boston Univ, Henry M Goldman Sch Dent Med, Dept Oral & Maxillofacial Surg, Boston, MA 02215 - USA
Número total de Afiliações: 3
Tipo de documento:
INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS;
Citações Web of Science:
Purpose: To evaluate the clinical outcomes of unsplinted implant-supported single crowns placed in adolescents, ages 10 to 19 years, and followed up from 5 to 15 years. Materials and Methods: This retrospective case series evaluated the outcomes of implant-supported single crowns placed in adolescents between June 2002 and January 2015. The patients were treated with locking-taper connection implants under a two-stage rehabilitation technique. The variables assessed included patient identification, age and reason for implant placement, implant dimensions, follow-up time, status at follow-up, and event description. To analyze peri-implant changes, bone crest level relative to the adjacent tooth was measured from periapical radiographs taken after implantation and the latest follow-up. A paired t test was performed to determine initial and follow-up differences, and data are shown as mean and 95% confidence interval. Cumulative Kaplan-Meier survival rates for implants and prostheses were calculated. Results: Twenty-one adolescent patients with ages ranging from 14 to 19 years, mainly 16 to 18 years, received a total of 37 implant-supported single crowns more frequently placed in the anterior maxilla as a result of congenital aplasia and trauma. Mean changes in bone crests were 1.99 (+/- 0.4) mm at the day of crown insertion and 2.23 (+/- 0.4) mm at the latest follow-up (average: 10 years; P=.08). No implant was lost during the follow-up period, leading to 100% implant survival. A total of 34 surviving crowns and 3 crown failures at the time of the latest follow-up led to a cumulative survival rate of 70%. The most commonly observed event was loss of proximal contacts and infraocclusion, which were handled chairside by adding resin composite. Conclusion: Unsplinted implant-supported single crowns placed in adolescents showed high implant and prosthesis survival rates, with a mean bone crest level increase of approximately 0.23 mm relative to the adjacent teeth. (AU)