Evaluation on short-term clinical effect of splinted short implants in mandible of posterior region.

doi:10.7504/kq.2015.01.006

Abstract

Abstract:

Abstract：Objective To evaluate the short-term clinical effect of splinted short implants in the partly edentulous mandible of posterior regions. Methods Totally 65 patients（130 implants）who received short implants or standard implants to restore dentition defect in mandible of posterior regions during the period between January 2008 and January 2013 at the Implant Center of Hospital of Stomatology，China Medical University were selected，including 31 patients with 62 short implants（length ≤ 8.5 mm）as the short implant group and 34 patients with 68 standard implants（length ≥ 11.5 mm）as control group. Relevant clinical data was recorded and analyzed，such as cumulative success rate，biomechanical complications，marginal bone loss and Crown/Implant ratio. Results Two implants failed in both short implant group and control group. No significant differences in cumulative success rate，biomechanical complications and marginal bone loss were found between the two groups（P > 0.05）. The clinical Crown/Implant ratio in short implant group was significantly greater than that of the control group（P < 0.01）. Conclusion In the case of strict control of indications，the application of short implants to restore edentulous mandible of posterior regions for those who had bone defect can achieve more satisfactory clinical results，and additionally reduce the operation risk and the economic burden of patients.

Key words: short dental implant, cumulative success rate, marginal bone loss

摘要：

目的评估应用短种植体联冠修复下颌后牙牙列缺损的短期临床疗效。方法选择2008年1月至2013年1月在中国医科大学附属口腔医院种植中心植入2枚种植体并用联冠修复下颌后牙牙列缺损的患者65例，共植入130枚种植体。其中，31例患者植入62枚短种植体（长度≤ 8.5 mm）作为短种植体组，34例患者植入68枚标准种植体（长度≥ 11.5 mm）作为对照组。记录并统计分析病例在手术当天及复诊时的相关临床资料，包括种植体累积成功率、生物机械并发症、边缘骨吸收、临床冠根比等。结果两组各有2枚种植体失败；两组种植体累积成功率、并发症及边缘骨吸收比较差异无统计学意义（P > 0.05）；短种植体组临床冠根比显著大于对照组（P < 0.01）。结论在严格控制适应证的情况下，对于骨量不足的患者应用短种植体修复下颌后牙牙列缺损能够取得理想的临床效果，同时可以降低手术风险，并减轻患者经济负担。

关键词: 短种植体, 累积成功率, 边缘骨吸收

CLC Number:

Ｒ78

ZHANG Bo，SHAO Lei，ZHAO Bao-hong，DENG Chun-fu，SHANG De-hao，ZHANG Chong，WANG Dan-ning. Evaluation on short-term clinical effect of splinted short implants in mandible of posterior region.[J]. Acta Metallurgica Sinica, DOI: 10.7504/kq.2015.01.006.

张波，邵磊，赵宝红，邓春富，尚德浩，张翀，王丹宁. 下颌后牙区短种植体联冠修复短期临床效果评价[J]. 中国实用口腔科杂志, DOI: 10.7504/kq.2015.01.006.

References

［1］ Albrektsson T，Zarb G，Worthington P，et al. The long-term efficacy of currently used dental implants：a review and proposed criteria of success ［J］. Int J Oral Maxillofac Implants，1986，1（1）：11-25.

［2］ Sivolella S，Stellini E，Testori T，et al. Splinted and unsplinted short implants in mandibles：a retrospective evaluation with 5 to 16 years of follow-up ［J］. J Periodontol，2013，84（4）：502-512.

［3］ Lai HC，Si MS，Zhuang LF，et al. Long-term outcomes of short dental implants supporting single crowns in posterior region：A clinical retrospective study of 5-10 years［J］. Clin Oral Implants Res，2013，24（2）：230-237.

［4］ Telleman G，Raghoebar GM，Vissink A，et al. A systematic review of the prognosis of short （< 10 mm）dental implants placed in the partially edentulous patient ［J］. J Clin Periodontol，2011，38（7）：667-676.

［5］ Le BT，Follmar T，Borzabadi-Farahani A. Assessment of short dental implants restored with single-unit nonsplinted restorations ［J］. Implant Dent，2013，22（5）：499-502.

［6］ Goené R，Bianchesi C，Hüerzeler M，et al. Performance of short implants in partial restorations：3-year follow-up of Osseotite implants ［J］. Implant Dent，2005，14（3）：274-280.

［7］ Anitua E，Orive G. Short implants in maxillae and mandibles：a retrospective study with 1 to 8 years of follow-up ［J］. J Periodontol，2010，81（6）：819-826.

［8］ Sun HL，Huang C. Failure rates of short（≤ 10 mm）dental implants and factors influencing their failure：a systematic review ［J］. Int J Oral Maxillofac Implants，2011，26（4）：816-825.

［9］ Romeo E，Bivio A，Mosca D，et al. The use of short dental implants in clinical practice：literature review ［J］. Minerva Stomatol，2010，59（1）：23-31.

［10］ das Neves FD，Fones D，Bernardes SR，et al. Short implants--an analysis of longitudinal studies ［J］. Int J Oral Maxillofac Implants，2006，21（1）：86-93.

［11］ Pierrisnard L，Renauord F，Renault P，et al. Influence of implant length and bicortical anchorage on implant stress distribution ［J］. Clin Implant Dent Relat Res，2003，5（4）：254-262.

［12］ Hedia HS. Stress and strain distribution behavior in the bone due to the effect of cancellous bone，dental implant material，and bone height ［J］. Biomed Mater Eng，2002，12（2）：111-119.

［13］ Bilhan H，Geckili O，Mumcu E，et al. Influence of surgical technique，implant shape and diameter on the primary stability in cancellous bone ［J］. J Oral Rehabil，2010，37（12）：900-907.

［14］徐淑兰，周磊，黄建生，等. 大直径种植体修复单个磨牙的疗效分析［J］. 中国口腔种植学杂志，2006，11（3）：113-115.

［15］ Mericske-Stern R，Grütter L，Rösch R，et al. Clinical evaluation and prosthetic complications of single tooth replacements by non-submerged implants ［J］. Clin Oral Implants Res，2001，12（4）：309-318.

［16］ Anitua E，Piñas L，Begoña L，et al. Long-term retrospective evaluation of short implants in the posterior areas：clinical results after 10-12 years ［J］. J Clin Periodontol，2014，41（1）：404-411.

［17］ Fanuscu MI，Vu HV，Poncelet B. Implant biomechanics in grafted sinus：a finite element analysis ［J］. J Oral Implantol，2004，30（2）：59-68.

［18］江鹭鹭，唐佳奇，蔺增，等. 不同冠根比种植义齿修复下颌第一磨牙的三维有限元分析［J］. 中国实用口腔科杂志，2013，6（3）：144-147.

［19］ Blanes RJ，Bernard JP，Blanes ZM，et al. A 10-year prospective study of ITI dental implants placed in the posterior region. Ⅱ：Influence of the crown -to -implant ratio and different prosthetic treatment modalities on crestal bone loss ［J］. Clin Oral Implants Res，2007，18（6）：707-714.

［20］ Tan WC，Lang NP，Zwahlen M，et al. A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. Part Ⅱ：transalveolar technique ［J］. J Clin Periodontol，2008，35（8 Suppl）：241-254. 2014-06-24 收稿 2014-11-12 修回本文编辑：赵丽颖

[1]	. [J]. Acta Metallurgica Sinica, 2017, 10(12): 740-742.
[2]	. [J]. Acta Metallurgica Sinica, 2016, 9(4): 224-227.