title: The microtomographic evaluation of marginal bone resorption of immediately loaded scalloped design implant with various microthread configurations in canine mandible: pilot study.
abstract: This study was undertaken to evaluate the effect of microthread geometry of scalloped design implant on marginal bone resorption. Four types of scalloped design titanium implant specimens were prepared. The type 1 implant had a machined scalloped collar, type 2 had a sandblasted and acid-etched scalloped collar, type 3 had horizontal microthreads, and type 4 had parabolic microthreads, which are parallel with the scalloped conical margin. Two implants of a type were randomly installed immediately after extraction in the mandible of a beagle dog. Definitive prostheses were delivered immediately after surgery. After 12 weeks of healing, the dog was sacrificed and microtomography was performed. Type 4 specimens showed a marginal bone loss pattern definitively analogous to the scalloped margin. In this preliminary study, microthread geometry affected the marginal bone resorption pattern of scalloped design implants. However, additional specimens and more controlled conditions should be applied in future studies to confirm these results.
authors.affiliation: Department of Oral Anatomy, School of Dentistry and Dental Research Institute, Seoul, Korea.
authors.forename: Young-Seok
authors.initials: YS
authors.lastname: Park
authors.forename: Seung-Pyo
authors.initials: SP
authors.lastname: Lee
authors.forename: Chong-Hyun
authors.initials: CH
authors.lastname: Han
authors.forename: Joo Hyun
authors.initials: JH
authors.lastname: Kwon
authors.forename: Young-Chul
authors.initials: YC
authors.lastname: Jung
mesh_terms: D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging* / Q000209:etiology*; D000818:Animals; D015921:Dental Implants / Q000009:adverse effects*; D017267:Dental Prosthesis Design / Q000009:adverse effects*; D004285:Dogs; D057893:Immediate Dental Implant Loading; D010865:Pilot Projects; D011897:Random Allocation; D013499:Surface Properties; D055114:X-Ray Microtomography
chemical_list: D015921:Dental Implants