Abstract：
OBJECTIVE: The correlation between crestal bone loss at teeth and probing pocket depth (PPD) has been established. Whether these findings can also be applied to implants is not known. The objective of this study was to determine the correlation between crestal bone loss and PPD at teeth and implants.
METHODS: Thirty-one periodontitis-susceptible patients were rehabilitated with fixed implant-supported single crowns and fixed partial dentures. Each patient was examined over a 5- to 20-year period in a 3- to 6-month strict recall program. At each session, periodontal clinical parameters were recorded at teeth and implants. In addition, standardized periapical radiographs were taken after superstructure insertion (baseline) and then at 1, 3, 5, 10, 15, and 20 years.
RESULTS: The survival rate of implants (94.0%) and teeth (97.3%) did not significantly differ in all patients after 20 years (P = .68). Almost all patients had a PPD ≥ 5 mm at implants and teeth throughout the observation period. The crestal bone loss at implants and teeth increased continuously, especially in patients with advanced periodontitis, without a correlation with PPD. A few patients (n = 5) had a PPD ≥ 5 mm and annual bone loss ≥ 0.2 mm at one implant, with a correlation between bone loss and PPD.
CONCLUSIONS: In healthy implants and teeth, moderate crestal bone loss is present without correlation with PPD. A few patients showed progressive crestal bone loss at only one implant, with a correlation with PPD.
METHODS: Thirty-one periodontitis-susceptible patients were rehabilitated with fixed implant-supported single crowns and fixed partial dentures. Each patient was examined over a 5- to 20-year period in a 3- to 6-month strict recall program. At each session, periodontal clinical parameters were recorded at teeth and implants. In addition, standardized periapical radiographs were taken after superstructure insertion (baseline) and then at 1, 3, 5, 10, 15, and 20 years.
RESULTS: The survival rate of implants (94.0%) and teeth (97.3%) did not significantly differ in all patients after 20 years (P = .68). Almost all patients had a PPD ≥ 5 mm at implants and teeth throughout the observation period. The crestal bone loss at implants and teeth increased continuously, especially in patients with advanced periodontitis, without a correlation with PPD. A few patients (n = 5) had a PPD ≥ 5 mm and annual bone loss ≥ 0.2 mm at one implant, with a correlation between bone loss and PPD.
CONCLUSIONS: In healthy implants and teeth, moderate crestal bone loss is present without correlation with PPD. A few patients showed progressive crestal bone loss at only one implant, with a correlation with PPD.
摘要：
背景：已经建立了牙齿的颌骨丢失与探查袋深度（PPD）之间的相关性。这些发现是否也可以应用于植物尚不清楚。
目的：确定牙体和种植体的颌骨骨丢失与PPD的相关性。
方法：对31例牙周炎易感患者进行固定植骨支撑单冠和牙桥修复。在3至6个月的严格召回计划中，对每位患者进行了5至20年的检查。在每届会议上,在牙齿和种植体处记录牙周临床参数。此外,在上层结构插入后(基线),然后在1,3,5,10,15和20年拍摄标准化的根尖X线照片.
结果：20年后，所有患者的种植体（94.0％）和牙齿（97.3％）的存活率没有显着差异（p=0.68）。在整个观察期间，几乎所有患者的植入物和牙齿处都有5mm的PPD。种植体和牙齿的颌骨丢失持续增加，尤其是晚期牙周炎患者，与PPD无关。少数患者（n=5）在一次植入时PPD≥5mm，年度骨丢失≥0.2mm。骨丢失与PPD之间存在相关性。
结论：在健康的种植体和牙齿中，存在中度牙髓骨丢失，与PPD无关。很少有患者仅在一个植入物中表现出进行性的颌骨骨丢失，与PPD相关。
目的：确定牙体和种植体的颌骨骨丢失与PPD的相关性。
方法：对31例牙周炎易感患者进行固定植骨支撑单冠和牙桥修复。在3至6个月的严格召回计划中，对每位患者进行了5至20年的检查。在每届会议上,在牙齿和种植体处记录牙周临床参数。此外,在上层结构插入后(基线),然后在1,3,5,10,15和20年拍摄标准化的根尖X线照片.
结果：20年后，所有患者的种植体（94.0％）和牙齿（97.3％）的存活率没有显着差异（p=0.68）。在整个观察期间，几乎所有患者的植入物和牙齿处都有5mm的PPD。种植体和牙齿的颌骨丢失持续增加，尤其是晚期牙周炎患者，与PPD无关。少数患者（n=5）在一次植入时PPD≥5mm，年度骨丢失≥0.2mm。骨丢失与PPD之间存在相关性。
结论：在健康的种植体和牙齿中，存在中度牙髓骨丢失，与PPD无关。很少有患者仅在一个植入物中表现出进行性的颌骨骨丢失，与PPD相关。
