A prospective clinical study of immediate implant placement in the maxillary esthetic zone.

IF 2.2 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE
Hee-Seung Han, Sungtae Kim, Hyunjae Kim, Yuseung Yi, Young-Dan Cho
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Abstract

Purpose: Immediate implant placement (IIP) offers several advantages, including minimizing hard and soft tissue deformation, reducing implant time and cost, and rapidly restoring tooth function. However, IIP is technically challenging due to the need to secure initial stability and limit functional loading during healing. Therefore, this study aimed to evaluate the clinical outcomes of a bone-level implant featuring a dual thread design-an upper U-shaped thread and a lower V-shaped thread-with an 11° internal hexagonal connection in IIP within the maxillary esthetic zone.

Methods: This study included 20 patients. Implants were inserted immediately after tooth extraction. Soft tissue changes were evaluated before tooth extraction (V0), after IIP (V1), at prosthesis delivery (V5), at a 3-month follow-up after prosthesis delivery (V6), and at a 1-year follow-up (V8). Bone dimensional changes were assessed at V1 and V8 using cone beam computed tomography, and the marginal bone level (MBL) was evaluated at V6 and V8 using 2-dimensional.

Results: Of the 20 patients, 3 dropped out due to osseointegration failure during the follow-up period. Although the horizontal dimensions of the soft and hard tissues decreased slightly, the gingival margin and MBL remained well maintained throughout the follow-up.

Conclusions: Within this limited dataset, the lower V-shaped thread enabled favorable initial stability in IIP, and the esthetic outcomes were positive-with minimal gingival recession and marginal bone loss. Long-term follow-up is required to fully assess the impact of thread design and connection on esthetics.

Trial registration: Clinical Research Information Service Identifier: KCT0008231.

上颌美观区即刻种植体放置的前瞻性临床研究。
目的:即刻种植(IIP)具有多种优点,包括最大限度地减少软硬组织变形,减少种植时间和成本,快速恢复牙齿功能。然而,由于需要确保初始稳定性和限制愈合期间的功能负荷,IIP在技术上具有挑战性。因此,本研究旨在评估采用双螺纹设计(上u型螺纹和下v型螺纹)的骨水平种植体在上颌美观区IIP内11°内六角连接的临床效果。方法:本研究纳入20例患者。植体在拔牙后立即植入。分别在拔牙前(V0)、IIP后(V1)、义齿分娩时(V5)、义齿分娩后3个月随访时(V6)和1年随访时(V8)评估软组织变化。采用锥形束计算机断层扫描评估V1和V8的骨尺寸变化,采用二维方法评估V6和V8的边缘骨水平(MBL)。结果:20例患者中,有3例患者在随访期间因骨融合失败退出。虽然软硬组织的水平尺寸略有下降,但龈缘和MBL在随访期间保持良好。结论:在这个有限的数据集中,较低的v形螺纹在IIP中具有良好的初始稳定性,并且美学结果是积极的-牙龈萎缩和边缘骨质流失最小。需要长期随访,以充分评估螺纹设计和连接对美学的影响。试验注册:临床研究信息服务标识:KCT0008231。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Periodontal and Implant Science
Journal of Periodontal and Implant Science DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
3.30
自引率
5.30%
发文量
38
期刊介绍: Journal of Periodontal & Implant Science (JPIS) is a peer-reviewed and open-access journal providing up-to-date information relevant to professionalism of periodontology and dental implantology. JPIS is dedicated to global and extensive publication which includes evidence-based original articles, and fundamental reviews in order to cover a variety of interests in the field of periodontal as well as implant science.
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