Fragelli Camila Maria Bullio, Souza Juliana Feltrin de, Jeremias Fabiano, Cordeiro Rita de Cássia Loiola, Santos-Pinto Lourdes
Department of Pediatric Dentistry and Orthodontics, Araraquara School of Dentistry, Universidade Estadual Paulista, Araraquara, SP, Brazil.
Department of Pediatric Dentistry, School of Dentistry, Universidade Positivo, Curitiba, PR, Brazil.
Braz Oral Res. 2015;29. doi: 10.1590/1807-3107BOR-2015.vol29.0076. Epub 2015 Jun 16.
The purpose of this study was to evaluate the 12-month clinical performance of glass ionomer restorations in teeth with MIH. First permanent molars affected by MIH (48) were restored with glass ionomer cement (GIC) and evaluated at baseline, at 6 and at 12 months, by assessing tooth enamel breakdown, GIC breakdown and caries lesion associations. The data were analyzed using the chi-square test and actuarial survival analysis. The likelihood of a restored tooth remaining unchanged at the end of 12 months was 78%. No statistically significant difference was observed in the association between increased MIH severity and caries at baseline (p > 0.05) for a 6-month period, or between increased MIH severity and previous unsatisfactory treatment at baseline (p > 0.05) for both a 6- and 12-month period. A statistically significant difference was observed in the association between increased MIH severity and extension of the restoration, involving 2 or more surfaces (p < 0.05) at both periods, and between increased MIH severity and caries at baseline (p < 0.05) at a 12-month period. Because the likelihood of maintaining the tooth structures with GIC restorations is high, invasive treatment should be postponed until the child is sufficiently mature to cooperate with the treatment, mainly of teeth affected on just one face.
本研究的目的是评估玻璃离子修复体在患有乳牙列发育不全（MIH）的牙齿中的12个月临床性能。对48颗受MIH影响的第一恒磨牙用玻璃离子水门汀（GIC）进行修复，并在基线、6个月和12个月时通过评估牙釉质破坏、GIC破坏和龋损关联进行评估。使用卡方检验和精算生存分析对数据进行分析。修复后的牙齿在12个月末保持不变的可能性为78%。在6个月期间，MIH严重程度增加与基线龋病之间的关联（p>0.05），以及在6个月和12个月期间，MIH严重程度增加与基线时先前治疗效果不佳之间的关联（p>0.05），均未观察到统计学上的显著差异。在两个时期，MIH严重程度增加与涉及两个或更多面的修复体扩展之间的关联（p<0.05），以及在12个月时MIH严重程度增加与基线龋病之间的关联（p<0.05），均观察到统计学上的显著差异。由于使用GIC修复体维持牙齿结构的可能性很高，侵入性治疗应推迟到儿童足够成熟以配合治疗时进行，主要是针对仅一个面受影响的牙齿。
