Anitua Eduardo, Tarazona Aitana, Alkhraisat Mohammad Hamdan
University Institute for Regenerative Medicine and Oral Implantology-UIRMI (UPV/EHU-Fundación Eduardo Anitua), 01007 Vitoria, Spain.
BTI Biotechnology Institute, 01005 Vitoria, Spain.
Dent J (Basel). 2025 Mar 26;13(4):144. doi: 10.3390/dj13040144.
The upper central incisors play a central role in esthetics, symmetry, and function. The purpose of this study is to evaluate the use of narrow-diameter implants (NDIs) for replacing single missing upper central incisors, addressing the gap in research regarding specific tooth types and their esthetic outcomes. This retrospective study included adult patients with a single missing upper central incisor replaced by NDIs. Exclusion criteria included patients who lost adjacent teeth during follow-up and patients with non-loaded implants. The primary outcome was peri-implant bone stability, while secondary outcomes included implant survival, technical complications, patient satisfaction, and esthetic evaluation using the Pink Esthetic Score (PES) and the White Esthetic Score (WES). Descriptive statistical analysis was performed. A total of 64 NDIs were placed in 64 patients (mean age 55 ± 15 years; 40 females, 24 males). Implant diameters were 3.3 and 3.5 mm, with lengths ranging from 6.5 to 11.0 mm. The mean follow-up period was 42 ± 19 months. Marginal bone loss was -0.7 ± 0.9 mm mesially and -0.5 ± 0.7 mm distally. No implant failures were recorded. Esthetic outcomes were satisfactory, with a mean PES of 7.0 ± 2.6 and a mean WES of 7.9 ± 2.0. NDIs demonstrated high survival rates, marginal bone stability, and acceptable esthetic outcomes in the replacement of single upper central incisors.
上颌中切牙在美观、对称和功能方面起着核心作用。本研究的目的是评估窄直径种植体（NDIs）用于替换单个缺失的上颌中切牙的效果，以填补关于特定牙齿类型及其美学效果研究的空白。这项回顾性研究纳入了用NDIs替换单个缺失上颌中切牙的成年患者。排除标准包括随访期间失去相邻牙齿的患者和种植体未负重的患者。主要观察指标是种植体周围骨稳定性，次要观察指标包括种植体存活率、技术并发症、患者满意度以及使用粉色美学评分（PES）和白色美学评分（WES）进行的美学评价。进行了描述性统计分析。共有64颗NDIs植入64例患者（平均年龄55±15岁；女性40例，男性24例）。种植体直径为3.3和3.5毫米，长度范围为6.5至11.0毫米。平均随访期为42±19个月。近中边缘骨吸收为-0.7±0.9毫米，远中为-0.5±0.7毫米。未记录到种植体失败情况。美学效果令人满意，平均PES为7.0±2.6，平均WES为7.9±2.0。在替换单个上颌中切牙时，NDIs显示出高存活率、边缘骨稳定性和可接受的美学效果。
