Kirzioğlu Zuhal, Çiftçi Z Zahit, Yetiş Ceylan Ç
Department of Pediatric Dentistry, Faculty of Dentistry Suleyman Demirel University, Isparta, Turkey.
Department of Pediatric Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey, Phone: +902422274400, e-mail:
J Contemp Dent Pract. 2017 Mar 1;18(3):188-193.
The early loss of deciduous molars is a frequently encountered problem in dentistry. Various space maintainer designs were developed to prevent the loss of the space. The aim of this study was to evaluate long-term clinical performance and survival rates of fiber-reinforced composite resin (FRCR) as a space maintainer clinically.
This study was designed on 44 children who had early missed deciduous molars. Space maintainers were prepared on plaster models of patients and fixed directly to the adjacent teeth. Survival rate and whether it causes any damage to adjacent teeth were examined clinically and radio-graphically for 24 months or until failure. Kaplan-Meier survival analysis was used for the statistical analyses.
Overall, 16.2% of space maintainers were dislodged and accepted to be failed at the end of 12 months. At the 24-month control, 52.2% success was stated with the FRCR space maintainer and because of permanent tooth eruption, 31.8% of space maintainer were taken out. The mean duration of space maintainers was measured to be 14.8 ± 3.48 months. There was no statistical significance between survival time and gender, tooth number, localization, and measured space (p > 0.05).
After all 24 months follow-up, as well as esthetic properties of FRCR space maintainer, their applicability in a single seance and strength against the forces are determined as the advantages of the technique.
The FRCR space maintainers can be thought of as alternatives to metal space maintainers.
乳牙早失是牙科中常见的问题。人们开发了各种间隙保持器设计来防止间隙丧失。本研究的目的是在临床上评估纤维增强复合树脂(FRCR)作为间隙保持器的长期临床表现和生存率。
本研究针对44例乳牙早失的儿童进行设计。在患者的石膏模型上制作间隙保持器,并直接固定在相邻牙齿上。临床和影像学检查间隙保持器的生存率以及是否对相邻牙齿造成任何损害,为期24个月或直至失败。采用Kaplan-Meier生存分析进行统计分析。
总体而言,16.2%的间隙保持器在12个月结束时脱落并被认为失败。在24个月的检查中,FRCR间隙保持器的成功率为52.2%,由于恒牙萌出,31.8%的间隙保持器被取出。间隙保持器的平均使用时长为14.8±3.48个月。生存时间与性别、牙位、位置和测量间隙之间无统计学意义(p>0.05)。
经过24个月的随访,FRCR间隙保持器的美学特性、单次就诊时的适用性以及对抗力的强度均被确定为该技术的优势。
FRCR间隙保持器可被视为金属间隙保持器的替代品。