A Six-Year Prospective Comparative Study of Wide and Standard Diameter Implants in the Maxillary and Mandibular Posterior Area

Medicina

Puneet Wadhwa¹  Seung-Kook Kim¹  Ho-Kyung Lim¹  Hyun-Jin Kim¹  Eui-Seok Lee¹  Qi Jia²  Heng-Bo Jiang² 

[1] Department of Oral and Maxillofacial Surgery, Korea University Graduate School of Clinical Dentistry, Seoul 08308, Korea;The Conversationalist Club, School of Stomatology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai’an 271016, China;

关键词: wide diameter implants;    standard diameter implants;    survival rate;    marginal bone level;   

DOI  :  10.3390/medicina57101009

来源: DOAJ

【 摘 要 】

Background and Objectives: The aim of our study was to test whether wide diameter (6 mm) implants perform differently from standard diameter (4 mm) implants in terms of marginal bone level and survival rate. Materials and Methods: Our sample comprised 72 patients who underwent surgery; a total of 80 implants were placed in the maxillary or mandibular molar region. Patients were divided into two groups according to the diameter of the implant, and were followed up for six years after the final setting of the prosthetics. In the test group, 40 implants with 6-mm diameter were inserted; in the control group, 40 standard diameter implants were inserted. Using panoramic radiographs, we investigated mesial and distal marginal bone levels around the implant fixtures. Results: After the first implant surgery, three implants, including one wide diameter and two standard diameter implants, failed due to lack of osseointegration. We did not note any fixture fracture during the six-year follow-up. After loading, we observed a six-year survival rate of 97.29% with no statistically significant difference from standard diameter implants, with a survival rate of 94.87%. Conclusions: This study shows that 6-mm diameter implants may be considered in the presence of adequate alveolar ridge width in the posterior maxillary and mandibular regions.

【 授权许可】

Unknown