title: The early osseointegration of the laser-treated and acid-etched dental implants surface: an experimental study in rabbits.
abstract: The aim of the study was to evaluate early osseointegration of the laser-treated and acid-etched implant surface after the installation in rabbit tibias for 4 weeks. A total of 56 screw-shaped implants were grouped as follows: group A: implants were turned surface; group B: implants were laser-treated surface; group C: implants were acid-etched; group D: Implants were laser-treated and acid-etched surface. After 4 weeks, the removal torques were: group A: 13.21 +/- 11.30 Ncm; group B: 29.73 +/- 8.32 Ncm; group C: 30.31 +/- 9.45 Ncm; group D: 35.76 +/- 7.58 Ncm; The averages of bone-to-implant contact (BIC) were as follows: group A: 27.30 +/- 6.55%; group B: 38.00 +/- 8.56%; group C: 42.71 +/- 8.48%; group D: 49.71 +/- 9.21%. The removal torque and bone-to-implant contact measurements yielded statistically significant differences between the treated groups and turned group (P < 0.05); The laser-treated and acid-etched surface achieved higher Bone-to-Implant Contact than the laser-treated surface (P < 0.05), but there was no statistically significant difference between the laser-treated and acid-etched surface and the acid-etched surface in bone-to-implant contact (P > 0.05). In the present study, it was concluded that the laser-treated and acid-etched implants had good osteoconductivity and was a potential material for dental implantation.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, China.
authors.forename: Mingdeng
authors.initials: M
authors.lastname: Rong
authors.forename: Lei
authors.initials: L
authors.lastname: Zhou
authors.forename: Zehong
authors.initials: Z
authors.lastname: Gou
authors.forename: Andi
authors.initials: A
authors.lastname: Zhu
authors.forename: Dongfeng
authors.initials: D
authors.lastname: Zhou
mesh_terms: D000134:Acid Etching, Dental / Q000009:adverse effects / Q000379:methods; D000143:Acids / Q000494:pharmacology; D000818:Animals; D001863:Bone Screws; D002448:Cell Adhesion; D045662:Dental Etching / Q000379:methods; D015921:Dental Implants; D020007:Implants, Experimental; D007834:Lasers; D016348:Osseointegration / Q000502:physiology*; D011817:Rabbits; D013499:Surface Properties; D013997:Time Factors
chemical_list: D000143:Acids; D015921:Dental Implants