OBJECTIVE: In a seven-year prospective cohort study, the authors assessed the longevity of defective resin-based composite (RBC) restorations that were not treated or were treated by means of repair, sealing, refinishing or total replacement. They also aimed to identify and quantify the main reasons clinicians diagnosed restorations as defective. METHODS: Thirty-seven patients--19 women and 18 men--who were aged 27 through 78 years (mean = 57 years, standard deviation [SD] = 13 years) and had a total of 88 defective restorations participated in the study. Two of the authors assigned each restoration to one of five treatment groups, depending on the patient's treatment need: repair (n = 25), sealing of defective margins (n = 12), refinishing (n = 19), replacement (n = 16) and no treatment (n = 16). The authors conducted a survival analysis (according to modified U.S. Public Health Service criteria) at baseline and again at six months, one year, two years and seven years after treatment. RESULTS: The authors determined that the main reasons clinicians diagnosed the 88 restorations as being defective were marginal discoloration (n = 53, 60.2 percent), marginal degradation (n = 18, 20.5 percent) and color mismatch (n = 17, 19.3 percent). The authors examined 69 (78 percent) restorations at six months, 68 (77 percent) after one year, 62 (70 percent) after two years and 53 after seven years (60 percent). The percentages of failed restorations for each treatment after seven years were 0 percent for repair, 0 percent for sealing of defective margins, 18 percent for refinishing, 21 percent for replacement and 23 percent for no treatment. The P value for the log-rank test of equality for these groups was .36. CONCLUSIONS: Restorations degraded to varying degrees in all criteria, and the survival of restorations differed among treatment approaches. Longitudinal data collected across seven years support the viability of all nonreplacement restoration treatment strategies.
OBJECTIVE: In a seven-year prospective cohort study, the authors assessed the longevity of defective resin-based composite (RBC) restorations that were not treated or were treated by means of repair, sealing, refinishing or total replacement. They also aimed to identify and quantify the main reasons clinicians diagnosed restorations as defective. METHODS: Thirty-seven patients--19 women and 18 men--who were aged 27 through 78 years (mean = 57 years, standard deviation [SD] = 13 years) and had a total of 88 defective restorations participated in the study. Two of the authors assigned each restoration to one of five treatment groups, depending on the patient's treatment need: repair (n = 25), sealing of defective margins (n = 12), refinishing (n = 19), replacement (n = 16) and no treatment (n = 16). The authors conducted a survival analysis (according to modified U.S. Public Health Service criteria) at baseline and again at six months, one year, two years and seven years after treatment. RESULTS: The authors determined that the main reasons clinicians diagnosed the 88 restorations as being defective were marginal discoloration (n = 53, 60.2 percent), marginal degradation (n = 18, 20.5 percent) and color mismatch (n = 17, 19.3 percent). The authors examined 69 (78 percent) restorations at six months, 68 (77 percent) after one year, 62 (70 percent) after two years and 53 after seven years (60 percent). The percentages of failed restorations for each treatment after seven years were 0 percent for repair, 0 percent for sealing of defective margins, 18 percent for refinishing, 21 percent for replacement and 23 percent for no treatment. The P value for the log-rank test of equality for these groups was .36. CONCLUSIONS: Restorations degraded to varying degrees in all criteria, and the survival of restorations differed among treatment approaches. Longitudinal data collected across seven years support the viability of all nonreplacement restoration treatment strategies.
Authors: Tim J Heaven; Valeria V Gordan; Mark S Litaker; Jeffrey L Fellows; D Brad Rindal; Gregg H Gilbert Journal: J Dent Date: 2015-05-18 Impact factor: 4.379
Authors: N K Kuper; N J M Opdam; J L Ruben; J J de Soet; M S Cenci; E M Bronkhorst; M C D N J M Huysmans Journal: J Dent Res Date: 2014-05-06 Impact factor: 6.116
Authors: Valeria V Gordan; Joseph L Riley; Saulo Geraldeli; D Brad Rindal; Vibeke Qvist; Jeffrey L Fellows; H Paul Kellum; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2012-06 Impact factor: 3.634
Authors: Wynne E Norton; Ellen Funkhouser; Sonia K Makhija; Valeria V Gordan; James D Bader; D Brad Rindal; Daniel J Pihlstrom; Thomas J Hilton; Julie Frantsve-Hawley; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2014-01 Impact factor: 3.634
Authors: Mohammad O Sharif; Melanie Catleugh; Alison Merry; Martin Tickle; Stephen M Dunne; Paul Brunton; Vishal R Aggarwal; Lee Yee Chong Journal: Cochrane Database Syst Rev Date: 2014-02-08