J Korean Acad Prosthodont.  2002 Aug;40(4):374-385.

Relaltionship Between The Depth Access Hole And Prosthetic Components In Screw Retained Implants

• Ko SM
• Byun TH
• Lee JB

Abstract

A total of 605 implant fixture prosthesis delivered by 3 clinics and 2 laboratories were examined in this study. The object of this study was to determine the proper length of screw head. The depth of access hole were measured and compared to the type of fixture, abutment, gold screw and prosthesis. The results were as follows: 1. The average number of fixtures per patient were 2.97. 2. The number of fixture installed in the lower posterior area are 327(55.56 %), the upper posterior area 171(28.25%). 3. The depth of access hole is 4.23 mm in shallow area, and 5.46 mm in deep area and the differences were 1.23 mm. 4. The average depth of the aceess hole of the UCLA abutment were 5.02 mm. 5. The number of 4-5 mm access hole depth were 60(22.39%)in abutment screw level and the number of 4-5 mm depth in fixture level were 101(29.19%). 6. In the shape of screw head, hexed type were 576(95.21%), slotted type were 29(4.79%).

Keyword

Access hold; Prosthetic components; Screw retained implants; Fixture; Gold screw; Abutment

MeSH Terms

Head
Humans
Prostheses and Implants