title: Evaluation of Implant Collar Surfaces for Marginal Bone Loss: A Systematic Review and Meta-Analysis.
abstract: Background. It is important to understand the influence of different collar designs on peri-implant marginal bone loss, especially in the critical area. Objectives. The purpose of the present systematic review and meta-analysis was to compare dental implants with different collar surfaces, evaluating marginal bone loss and survival rates of implants. Methods. Eligibility criteria included clinical human studies, randomized controlled trials, and prospective and retrospective studies, which evaluated dental implants with different collar surface in the same study. Results. Twelve articles were included, with a total of 492 machined, 319 rough-surfaced, and 352 rough-surfaced microthreaded neck implants. There was less marginal bone loss at implants with rough-surfaced and rough-surfaced microthreaded neck than at machined-neck implants (difference in means: 0.321, 95% CI: 0.149 to 0.493; p < 0.01). Conclusion. Rough and rough-surfaced microthreaded implants are considered a predictable treatment for preserving early marginal bone loss.
authors: Department of Prosthodontics, Faculty of Dentistry, University of Medical Sciences, Tabriz 5166614711, Iran.
authors: Roodabeh
authors: 0000-0001-9719-3598
authors: R
authors: Koodaryan
authors: Department of Prosthodontics, Faculty of Dentistry, University of Medical Sciences, Tabriz 5166614711, Iran.
authors: Ali
authors: 0000-0002-7756-3616
authors: A
authors: Hafezeqoran
mesh_terms: D001862:Bone Resorption / Q000473:pathology*; D015921:Dental Implants; D006801:Humans; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011785:Quality Assurance, Health Care
chemical_list: D015921:Dental Implants