Clinical efficacy of simple taper-retained external connection narrow-diameter implants applied in the narrow alveolar ridge of the premolar region: a 5-8-year follow-up study

Wu Hao, Cao Ning, Cao Liangwei, Yu Fei, Zhang Xu, Wei Shibo, Wei Hongwu, Guo Shuigen

West China Journal of Stomatology . 2026, (1): 120 -128 . DOI: 10.7518/hxkq.2025.2025037