Biological and technical complications and failures with fixed partial dentures (FPD) on implants and teeth after four to five years of function
Biological and technical complications and failures with fixed partial dentures (FPD) on implants and teeth after four to five years of function
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DOI：
10.1034/j.1600-0501.2001.012001026.x
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发表时间：
2001-02-01
影响因子：
4.3
通讯作者：
Lang, NP
中科院分区：
文献类型：
--
作者：
Brägger, U;Aeschlimann, S;Lang, NP
本研究的目的是比较生物和技术并发症的频率与固定部分义齿（FPD）的种植体，牙齿和混合牙种植体支持FPD超过4至5年的功能。所有种植体都属于ITI（R）牙科种植体系统。I-I组（种植体FPD）33例，40个FPD; T-T组（牙FPD）40例，58个FPD; I-T组（牙-种植体混合FPD）15例，18个FPD。在桥基牙中，144个是牙齿，105个是种植体。被FPD替换的装置的中位数为3（范围2-14）。患者的平均年龄为55.7岁（范围23-83岁）。整个团队都失败了。由于继发于骨缺损的骨折，两个植入物丢失。1颗牙齿发生垂直骨折，1颗牙齿因牙周炎而脱落。9.6%（10）的种植体发生了生物学并发症（种植体周围炎、PPD大于或等于5 mm和BOP+）。然而，如果种植体周围炎的定义阈值设定为PPD大于或等于6 mm且BOP+，则该数字减少至5%。11.8%（17）的基牙发生了生物学并发症（NS与种植体相比）; 2.8%（4）有继发性龋齿，4.9%（7）有牙髓问题，4.1%（6）有牙周炎（PPD大于或等于5 mm，BOP+）。32例有一般健康问题的患者中有10例出现生物学并发症，而53例无一般健康问题的患者中有9例出现生物学并发症（chi（2）：NS）。种植体FPD的技术并发症在统计学上显著更多（χ 2，P <0.05）。技术并发症与磨牙症有关。10名磨牙者中有6名出现技术性并发症，而75名非磨牙者中有13名出现技术性并发症（χ 2 ≤ 0.01）。延长线与更多的技术并发症相关（35例使用延长线的患者中有13例，81例未使用延长线的患者中有9例）。总之，良好的临床条件下，发现在牙齿和种植体基台后4-5年的功能。在4-5年内，FPD丢失的发生率与混合，种植体或牙齿支持重建相似。在种植体上的FPD中发现了明显更多的瓷断裂。受损的一般健康状况与更多的生物学故障没有显着相关性，但磨牙症以及扩展与更多的技术故障。
The aim of this study was to compare the frequency of biological and technical complications with fixed partial dentures (FPDs) on implants, teeth and as mixed tooth-implant supported FPDs over 4 to 5 years of function. All implants belonged to the ITI(R) Dental Implant System. Group I-I (implant FPD) included 33 patients with 40 FPDs, group T-T (tooth FPDs) 40 patients with 58 FPDs, group I-T (mixed tooth-implant FPDs) 15 with 18 FPD. Of the bridge abutments 144 were teeth and 105 were implants. The median number of units replaced by the FPDs was 3 (range 2-14). The mean age of the patients was 55.7 years (range 23-83). Complete failures resulted in the group. Two implants were lost due to fracture secondarily to development of a bone defect. One tooth had a vertical fracture and 1 tooth was lost due to periodontitis. Biological complications (peri-implantitis, PPD greater than or equal to5 mm and BOP+) occurred at 9.6% (10) of the implants. This number was, however, reduced to 5% if the threshold for definition of peri-implantitis was set at PPD greater than or equal to6 mm and BOP+. Biological complications occurred in 11.8% (17) of the abutment teeth (NS compared to implants); 2.8% (4) had secondary caries, 4.9% (7) endodontic problems and 4.1% (6) had periodontitis (PPD greater than or equal to5 mm, BOP+). Ten out of 32 patients with a general health problem indicated a biological complication, whereas 9 out of 53 patients with no general health problem had a biological complication (chi (2): NS). Statistically significantly more technical complications were found in FPDs on implants (chi (2), P less than or equal to0.05). The technical complications were associated with bruxism. Out of 10 bruxers 6 had a technical complication whereas 13 out of 75 non-bruxers had such a complication (chi (2)less than or equal to0.01). Extensions were associated with more technical complications (13 out of 35 with extensions versus 9 out of 81 without). In conclusion, favourable clinical conditions were found at tooth and implant abutments after 4-5 years of function. Loss of FPD over 4-5 years occurred at a similar rate with mixed, implant or tooth supported reconstructions. Significantly more porcelain fractures were found in FPDs on implants. Impaired general health status was not significantly associated with more biological failures but bruxism as well as extensions were associated with more technical failures.