[牙周炎患者使用锁定锥形种植体的临床研究]

[Clinical study of locking-taper implants in patients treated for periodontitis].

作者信息

Zhang H D, Zhang L, Shi D, Han J, Yan X, Xie Y S, Meng H X

机构信息

Department of Peiriodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.

出版信息

Beijing Da Xue Xue Bao Yi Xue Ban. 2018 Apr 18;50(2):300-307.

PMID:29643530

Abstract

OBJECTIVE

To evaluate the survival rate and peri-implant clinical parameters of Locking-Taper implants in patients having lost their teeth due to non-periodontitis (NP) reasons, chronic periodontitis (CP) and aggressive periodontitis (AgP).

METHODS

In the study, 145 subjects were installed with 315 Bicon Locking-Taper implants and followed up for 1-5 years. The subjects and implants were classified into three groups, tooth loss by NP, CP and AgP. NP included 44 subjects with 100 implants, CP 70 subjects with 132 implants and AgP 31 subjects with 83 implants. Periodontal parameters before subgingival scaling and root planning (T0), at the end of active periodontal therapy (T1) and at the time of last recall (T2) were recorded. Right after the installation of final restoration and at the time of last recall (T2), peri-implant probing parameters were recorded.

RESULTS

After active periodontal therapy, mean probing depth (PD) in CP and AgP were reduced from 4.05 mm, 5.20 mm at T0 to 3.07 mm, 2.96 mm at T1 (P<0.001, P<0.001), (PD≥6 mm)% were reduced from 33.2%, 58.5% at T0 to 14.4%, 10.5% at T1 (P<0.001, P<0.001). The periodontal parameters remained stable at T2 compared with T1 (P>0.05). Cumulative survival rates of implants in NP, CP and AgP were 100%, 97.6% and 100% for 1-5 years' follow-ups with no statistical significance found. At T2, mean implant PD was 2.78 mm, 2.96 mm and 2.97 mm in NP, CP and AgP, with NP significantly lower than the other two groups (P=0.006, P=0.01). The percentage of implant sites with PD≥6 mm was 3.7% in CP and 4.8% in AgP, both significantly higher than NP (P=0.003, P<0.001). 8.4% implant sites showed at least 2 mm deeper than those at prosthesis installation were found in CP group, significantly higher than NP (4.3%, P=0.003).

CONCLUSION

Periodontal conditions of patients having lost their teeth for chronic and aggressive periodontitis were significantly improved after active periodontal therapy and remained stable during 1-5 years. Short-term survival rates of Locking-Taper implants in patients treated for CP and AgP was no less than those who lost their teeth for non-periodontitis reasons. More sites with increasing peri-implant probing depth were found in CP and AgP patients, compared with NP.

摘要

目的

评估因非牙周炎（NP）、慢性牙周炎（CP）和侵袭性牙周炎（AgP）而失牙患者中锁定锥形种植体的存活率及种植体周围临床参数。

方法

本研究中，145名受试者植入了315颗Bicon锁定锥形种植体，并随访1至5年。受试者和种植体被分为三组，因NP、CP和AgP导致的失牙。NP组包括44名受试者和100颗种植体，CP组70名受试者和132颗种植体，AgP组31名受试者和83颗种植体。记录龈下刮治和根面平整前（T0）、牙周积极治疗结束时（T1）以及最后一次复查时（T2）的牙周参数。在最终修复体安装后及最后一次复查时（T2），记录种植体周围探诊参数。

结果

牙周积极治疗后，CP组和AgP组的平均探诊深度（PD）从T0时的4.05mm、5.20mm降至T1时的3.07mm、2.96mm（P<0.001，P<0.001），（PD≥6mm）的比例从T0时的33.2%、58.5%降至T1时的14.4%、10.5%（P<0.001，P<0.001）。与T1相比，T2时牙周参数保持稳定（P>0.05）。NP组、CP组和AgP组种植体1至5年随访的累积存活率分别为100%、97.6%和100%，差异无统计学意义。在T2时，NP组、CP组和AgP组种植体的平均PD分别为2.78mm、2.96mm和2.97mm，NP组显著低于其他两组（P=0.006，P=0.01）。CP组和AgP组中PD≥6mm的种植位点比例分别为3.7%和4.8%，均显著高于NP组（P=0.003，P<0.001）。CP组中8.4%的种植位点比修复体安装时至少深2mm，显著高于NP组（4.3%，P=0.003）。