IMPACT OF LOADING PROTOCOL OF 2-IMPLANT BAR-RETAINED MANDIBULAR OVERDENTURES ON ORAL HEALTH-RELATED QUALITY OF LIFE: A RANDOMIZED CONTROLLED TRIAL

IF 4.1 4区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE
DANIEL R. REISSMANN , MARTIN SCHIMMEL , DOMINIK KRAUS , MILAN STOILOV , MURALI SRINIVASAN , NORBERT ENKLING
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Abstract

Objectives

Aim was to assess whether immediate loading (IL) is more effective than delayed loading (DL) for 2-implant bar-retained mandibular overdentures in terms of oral health-related quality of life (OHRQoL) improvement over a period of 24-month.

Methods

In this randomized controlled trial, 32 edentulous patients (mean age: 65.7 ± 10.6 years, 50.0% female) were included. Potential participants had to be unsatisfied with the retention of their current mandibular complete denture and demanded implant treatment for inclusion in the study. OHRQoL was assessed with the 49-item Oral Health Impact Profile (OHIP) at baseline before treatment and 1, 3, 6, 12, and 24 months after implant loading and insertion of implant-retained bars for overdenture support. A mixed-effects model with patients as random effect and an unstructured covariance matrix was developed to address repeated outcome measurement.

Results

Patients’ OHRQoL impairment at baseline was substantial indicated by mean OHIP summary score of 45.1 points. OHIP summary scores decreased substantially from baseline to 1-month follow-up to a mean of 33.5 points (P = .020). OHRQoL further improved during study period indicated by OHIP summary score of 25.7 points at 24-month follow-up. Raw treatment effects (IL vs. DL) ranged from -1.2 OHIP points for 12-month follow-up to 5.8 OHIP points for 24-month follow-up. Assuming constant treatment and time effects, treatment effect was small and not statistically significant (-0.7 OHIP points; P= .918).

Conclusion

A 2-implant bar-retained mandibular overdentures substantially improves OHRQoL over a period of at least 24 months. There seems to be no significant effect of implant loading protocol.

2种植体棒固位下颌覆盖义齿加载方案对口腔健康相关生活质量的影响:一项随机对照试验
目的:评估在24个月的口腔健康相关生活质量(OHRQoL)改善方面,即刻装填(IL)是否比延迟装填(DL)更有效。方法随机对照试验32例无牙患者,平均年龄65.7±10.6岁,女性50.0%。潜在的参与者必须对他们目前的下颌全口义齿保留不满意,并要求种植治疗纳入研究。在治疗前和种植体装载和种植体保留杆插入用于覆盖义齿支持后的1、3、6、12和24个月,通过49项口腔健康影响量表(OHIP)对OHRQoL进行评估。以患者为随机效应和非结构化协方差矩阵建立混合效应模型,以解决重复结果测量问题。结果OHIP平均总分为45.1分,表明患者在基线时的OHRQoL下降明显。OHIP综合评分从基线到1个月随访显著下降至平均33.5分(P = 0.020)。OHRQoL在研究期间进一步改善,随访24个月OHIP总评分为25.7分。原始治疗效果(IL vs DL)从12个月随访的-1.2 OHIP点数到24个月随访的5.8 OHIP点数不等。假设治疗和时间效应不变,治疗效果较小且无统计学意义(-0.7 OHIP点;P = .918)。结论2种植体棒固位下颌覆盖义齿可显著改善OHRQoL,至少持续24个月。植入物加载方案似乎没有显著影响。
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来源期刊
Journal of Evidence-Based Dental Practice
Journal of Evidence-Based Dental Practice DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
6.00
自引率
16.70%
发文量
105
审稿时长
28 days
期刊介绍: The Journal of Evidence-Based Dental Practice presents timely original articles, as well as reviews of articles on the results and outcomes of clinical procedures and treatment. The Journal advocates the use or rejection of a procedure based on solid, clinical evidence found in literature. The Journal''s dynamic operating principles are explicitness in process and objectives, publication of the highest-quality reviews and original articles, and an emphasis on objectivity.
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