Sonnenschein Sarah K, Betzler Carlota, Rütters Maurice A, Krisam Johannes, Saure Daniel, Kim Ti-Sun
a Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral, Dental and Maxillofacial Diseases , University Hospital Heidelberg , Heidelberg , Germany.
b Institute of Medical Biometry and Informatics, Ruprecht-Karls-University of Heidelberg , Heidelberg , Germany.
Acta Odontol Scand. 2017 Oct;75(7):475-482. doi: 10.1080/00016357.2017.1340668. Epub 2017 Jun 23.
The aim of the study was to retrospectively assess the survival rate and stability of periodontally compromised and mobile anterior mandibular teeth after splinting in patients under supportive periodontal therapy (SPT).
Thirty-nine patients with splinted anterior mandibular teeth and SPT (≥1 visit/year) for 3-15 years were re-examined. Periodontal status, patient and tooth-related factors were assessed retrospectively before (baseline) and 3 years after splinting (n = 39 patients, 162 splinted teeth). For patients with splints inserted for more than 3 years, retrospective data after 5 (n = 30), 7 (n = 24), 10 (n = 16), 12 (n = 8) and 15 years (n = 4) was included, if available. At baseline, splinted teeth included at least one tooth with increased mobility combined with clinical attachment loss (CAL) ≥ 5 mm and ≥50% relative bone loss (RBL). Baseline RBL of splinted teeth was assessed for all patients. Change in RBL was assessed after 10 years, if available.
No splinted tooth was lost within the first 3 years after splinting. One splinted tooth was lost 7 years after baseline and one 12 years after baseline. After 3 years mean(SD) periodontal probing depth of splinted teeth decreased from 3.39(1.41) mm to 2.12(0.37) mm and mean(SD) CAL from 5.61(1.66) mm to 5.09(1.67) mm and remained stable over the observation period. No change in RBL was observed over a 10-year period (p = .213). The survival rate of the splints until fracture or debonding was 74.4% after 3 years.
Periodontally compromised splinted teeth show a high survival-rate and periodontal stability during SPT.
本研究旨在回顾性评估在支持性牙周治疗（SPT）下，下颌前牙牙周状况不佳且松动的牙齿在夹板固定后的存活率和稳定性。
对39例下颌前牙进行夹板固定并接受SPT（每年至少就诊1次）3至15年的患者进行复查。回顾性评估夹板固定前（基线）和夹板固定后3年（n = 39例患者，162颗夹板固定牙）的牙周状况、患者及牙齿相关因素。对于夹板固定超过3年的患者，如有可用数据，则纳入5年（n = 30）、7年（n = 24）、10年（n = 16）、12年（n = 8）和15年（n = 4）后的回顾性数据。在基线时，夹板固定牙至少包括一颗松动度增加且临床附着丧失（CAL）≥5 mm和相对骨丧失（RBL）≥50%的牙齿。对所有患者评估夹板固定牙的基线RBL。如有可用数据，在10年后评估RBL的变化。
夹板固定后的前3年内，无夹板固定牙脱落。1颗夹板固定牙在基线后7年脱落，1颗在基线后12年脱落。3年后，夹板固定牙的平均（标准差）牙周探诊深度从3.39（1.41）mm降至2.12（0.37）mm，平均（标准差）CAL从5.61（1.66）mm降至5.09（1.67）mm，且在观察期内保持稳定。在10年期间未观察到RBL的变化（p = 0.213）。3年后夹板直至折断或脱胶的存活率为74.4%。
在SPT期间，牙周状况不佳的夹板固定牙显示出较高的存活率和牙周稳定性。
