Vertical versus angled immediately loaded implants for assisting maxillary overdentures with locator attachments: A preliminary results of one-year randomized clinical trial

IF 3.7 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Clinical Implant Dentistry and Related Research Pub Date : 2023-11-05 DOI:10.1111/cid.13291

Marwa Ahmed Aboelez BDS, MSc, PHD, Christine Raouf Micheal Ibrahim BDS, MSc, PhD, Mohamad Hossam El-Din Helmy BDS, MSc, PhD, Moustafa Abdou Elsyad BDS, MSc, PhD

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Abstract

Objectives

This study aimed to evaluate the clinical outcomes and patient satisfaction of 4-implant-assisted maxillary overdentures using two different designs.

Materials and Methods

Thirty edentulous participants received four implants in the maxillary ridge. The patients were randomly divided into two equal groups: (1) the control (CG, Vertical) group (n = 15); participants received four vertical implants with straight locator attachments to retain maxillary overdentures, and (2) the study (SG, Angled) group (n = 15); participants received four angled implants with angled locator attachments to retain maxillary overdentures. Peri-implant tissue health [Plaque (PL) and gingival (GI) indices, pocket depth (PD), implant stability (ISQ) and crestal bone loss (CBL)] were evaluated after denture insertion (T0), 6 (T6), and 12 (T12) months after insertion. Patient satisfaction was evaluated using a visual analog scale (VAS) after 12 months.

Results

The survival rates were 96.7% and 95% for the control and study groups respectively. PL, GI, and PD increased significantly in both groups with the passage of time. No significant difference in PL, GI, PD, and ISQ was noted between groups at all observation times. CG showed higher CBL than SG at T12. For the VAS results, there was no significant difference between groups. SG recorded significantly higher satisfaction regarding comfort with maxillary and mandibular dentures, retention of mandibular dentures, oral hygiene, the ability to chew hard food, and occlusion than CG.

Conclusion

Within the limitations of this study, angled implants with angled locator attachments may be recommended to retain maxillary overdentures opposing intact dentition or fixed restoration as it was associated with improvements of several parameters of peri-implant tissue health and patient satisfaction compared to vertical implants with straight locator attachments.

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垂直与倾斜即刻加载种植体辅助带定位器附件的上颌覆盖义齿：一项为期一年的随机临床试验的初步结果。

目的：本研究旨在评估使用两种不同设计的4种植体辅助上颌覆盖义齿的临床结果和患者满意度。材料和方法：30名无牙参与者在上颌嵴接受了4个种植体。患者被随机分为两组：（1）对照组（CG，垂直）（n = 15）；受试者接受了四个带有直定位器附件的垂直种植体，以保留上颌覆盖义齿；（2）研究组（SG，倾斜）（n = 15）；参与者接受了四个带角度定位器附件的倾斜种植体，以保留上颌覆盖义齿。在义齿插入（T0）、6（T6）和12（T12）个月后评估种植体周围组织健康状况[牙菌斑（PL）和牙龈（GI）指数、袋深度（PD）、种植体稳定性（ISQ）和冠骨损失（CBL）]。12岁后使用视觉模拟量表（VAS）评估患者满意度月。结果：对照组和研究组的生存率分别为96.7%和95%。随着时间的推移，两组的PL、GI和PD均显著增加。在所有观察时间，各组之间的PL、GI、PD和ISQ均无显著差异。在T12时CG的CBL高于SG。对于VAS结果，各组之间没有显著差异。SG在上颌和下颌义齿的舒适度、下颌义齿的固位、口腔卫生、咀嚼硬食物的能力和咬合方面的满意度显著高于CG。结论：在本研究的限制范围内，与具有直定位器附件的垂直种植体相比，具有倾斜定位器附件的倾斜种植体可被推荐用于保留与完整牙列或固定修复体相对的上颌覆盖义齿，因为这与种植体周围组织健康和患者满意度的几个参数的改善有关。

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来源期刊

Clinical Implant Dentistry and Related Research 医学-牙科与口腔外科

CiteScore

6.00

自引率

13.90%

发文量

103

审稿时长

4-8 weeks

期刊介绍： The goal of Clinical Implant Dentistry and Related Research is to advance the scientific and technical aspects relating to dental implants and related scientific subjects. Dissemination of new and evolving information related to dental implants and the related science is the primary goal of our journal. The range of topics covered by the journals will include but be not limited to: New scientific developments relating to bone Implant surfaces and their relationship to the surrounding tissues Computer aided implant designs Computer aided prosthetic designs Immediate implant loading Immediate implant placement Materials relating to bone induction and conduction New surgical methods relating to implant placement New materials and methods relating to implant restorations Methods for determining implant stability A primary focus of the journal is publication of evidenced based articles evaluating to new dental implants, techniques and multicenter studies evaluating these treatments. In addition basic science research relating to wound healing and osseointegration will be an important focus for the journal.