Analysis of the socket bone wall dimensions in the upper maxilla in relation to immediate implant placement

• Published in: Clinical oral implants research 2010-01, Vol.21 (1), p.37-42
• Main Authors: Huynh-Ba, Guy, Pjetursson, Bjarni E., Sanz, Mariano, Cecchinato, Denis, Ferrus, Jorge, Lindhe, Jan, Lang, Niklaus P.
• Format: Article
• Language: English
• Subjects: 80 and over; Adult; Aged; Aged, 80 and over; Alveolar Process; Alveolar Process - anatomy & histology; Alveolar Process - surgery; anatomy & histology; bone; defect; dental implant; Dental Implantation; Dental Implantation, Endosseous - methods; Dental Implants; Dental Implants, Single-Tooth; Dentistry; Endosseous; extraction socket; Female; Humans; Male; Maxilla; Maxilla - anatomy & histology; Maxilla - surgery; methods; Middle Aged; Odontologi; Prospective Studies; resorption; Single-Tooth; surgery; Tooth Socket; Tooth Socket - anatomy & histology; Tooth Socket - surgery; Treatment Outcome; width
• ISSN: 0905-7161; 1600-0501; 1600-0501
• DOI: 10.1111/j.1600-0501.2009.01870.x

Background: Animal and human researches have shown that immediate implant placement into extraction sockets failed to prevent socket dimensional changes following tooth extraction. It has been suggested that a minimal width of 1–2 mm of buccal bone is necessary to maintain a stable vertical dimension of the alveolar crest. Aim: To determine the dimensions of the bony wall at extraction sites in the esthetic zone (anterior teeth and premolars in the maxilla) and relate it to immediate implant placement. Methods: As part of an ongoing prospective randomized‐controlled multicenter clinical study on immediate implant placement, the width of the buccal and palatal bony walls was recorded at 93 extraction sites. Results: The mean width of the buccal and palatal bony walls was 1 and 1.2 mm, respectively (P