Treatment of teeth with insufficient clinical crown. Long-term clinical outcomes of a minimally invasive crown lengthening approach: a retrospective analysis.

Perpaolo Cortellini, Simone Cortellini, Daniele Bonaccini, Gabrielle Stalpers, Aniello Mollo, Jacopo Buti
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Abstract

Aims: Aim of this retrospective study was to evaluate the incidence of complications and to determine the long-term survival rate of teeth with severely compromised clinical crowns treated with minimally invasive crown lengthening (MICL) and restorative treatment.

Methods: A sample of 112 teeth in 86 patients was treated with MICL and restorative dentistry. Endodontic and orthodontic therapy was applied when needed. Clinical outcomes were assessed at baseline, 1 year and long-term.

Results: The application of MICL resulted in very limited radiographic bone resection (RBR, 1 ± 0.1 mm on average). Limited local inflammation and shallow probing depth were detected at 1 year (2.6 ± 0.5 mm) and long-term (2.9 ± 1.0 mm). Most of the teeth (76.8%) maintained dental and periodontal health over time. The negative events observed in 26 teeth were caries (8.9%), fractures (7.1%), endodontic problems (1.8%), periodontal problems (4.5%) and restoration problems / complications (0.9%). The survival rate was 90.2%.

Conclusions: the outcomes of this long-term retrospective analysis (8.9 ± 0.9 years, range 8 to 10) show high tooth survival rates and low incidence of complications of teeth treated with MICL and restoration of the clinical crown.

临床牙冠不足的牙齿治疗。微创牙冠延长术的长期临床结果:回顾性分析。
目的:本回顾性研究的目的是评估微创牙冠延长术(MICL)和修复治疗严重受损临床牙冠的牙齿的并发症发生率,并确定其长期生存率。方法:对86例112颗牙齿进行MICL和修复性牙科治疗。在需要的时候进行正畸治疗。在基线、1年和长期评估临床结果。结果:MICL的应用导致非常有限的放射学骨切除(RBR,平均1±0.1 mm)。在1年(2.6±0.5 mm)和长期(2.9±1.0 mm)时检测到有限的局部炎症和浅探深度。随着时间的推移,大多数牙齿(76.8%)保持了牙齿和牙周健康。在26颗牙齿中观察到的负面事件是龋齿(8.9%)、骨折(7.1%)、牙髓病(1.8%)、,牙周问题(4.5%)和修复问题/并发症(0.9%)。生存率为90.2%。结论:这项长期回顾性分析的结果(8.9±0.9年,范围8-10)显示,MICL治疗和临床牙冠修复的牙齿存活率高,并发症发生率低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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