PMID- 29503717 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 2005-7806 (Print) IS - 2005-7814 (Electronic) IS - 2005-7806 (Linking) VI - 10 IP - 1 DP - 2018 Feb TI - Comparison of removal torques between laser-etched and modified sandblasted acid-etched Ti implant surfaces in rabbit tibias. PG - 73-78 LID - 10.4047/jap.2018.10.1.73 [doi] AB - PURPOSE: The purpose of this study was to analyze the effects of two different implant surface treatments on initial bone connection by comparing the Removal Torque Values (RTQs) at 7 and 10 days after chemically modified, sandblasted, large-grit and acid-etched (modSLA), and Laser-etched (LE) Ti implant placements. MATERIALS AND METHODS: Twenty modSLA and 20 LE implants were installed on the left and right tibias of 20 adult rabbits. RTQs were measured after 7 and 10 days in 10 rabbits each. Scanning electron microscope (SEM) photographs of the two implants were observed by using Quanta FEG 650 from the FEI company (Hillsboro, OR, USA). Analyses of surface elements and components were conducted using energy dispersive spectroscopy (EDS, Horiba, Kyoto, Japan). RESULTS: The mean RTQs were 12.29 +/- 0.830 and 12.19 +/- 0.713 Ncm after 7 days (P=.928) and 16.47 +/- 1.324 and 16.17 +/- 1.165 Ncm after 10 days (P=.867) for LE and modSLA, respectively, indicating no significant inter-group differences. Pore sizes in the LE were 40 microm and consisted of numerous small pores, whereas pore sizes in the modSLA were 5 microm. In the EDS analysis, Ti, O, and C were the only three elements found in the LE surfaces. Na, Ca, Cl, and K were also observed in modSLA, in addition to Ti, O, and C. CONCLUSION: The implants showed no significant difference in biomechanical bond strength to bone in early-stage osseointegration. LE implant can be considered an excellent surface treatment method in addition to the modSLA implant and can be applied to the early loading of the prosthesis clinically. FAU - Park, Kyung-Soon AU - Park KS AUID- ORCID: 0000-0002-3776-8852 AD - Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea. FAU - Al Awamleh, Abdel Ghani Ibrahim AU - Al Awamleh AGI AD - Department Oral and Maxillofacial Surgery in Al Hussein Hospital, Al Salt., Jordan. FAU - Cho, Sung-Am AU - Cho SA AUID- ORCID: 0000-0002-8315-7833 AD - Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea. LA - eng PT - Journal Article DEP - 20180212 PL - Korea (South) TA - J Adv Prosthodont JT - The journal of advanced prosthodontics JID - 101521064 PMC - PMC5829290 OTO - NOTNLM OT - Energy dispersive spectroscopy OT - Laser treatment OT - Removal torque OT - Sandblasted large-grit acid-etched OT - Scanning electron microscope EDAT- 2018/03/06 06:00 MHDA- 2018/03/06 06:01 PMCR- 2018/02/01 CRDT- 2018/03/06 06:00 PHST- 2017/08/17 00:00 [received] PHST- 2017/09/01 00:00 [revised] PHST- 2017/09/12 00:00 [accepted] PHST- 2018/03/06 06:00 [entrez] PHST- 2018/03/06 06:00 [pubmed] PHST- 2018/03/06 06:01 [medline] PHST- 2018/02/01 00:00 [pmc-release] AID - 10.4047/jap.2018.10.1.73 [doi] PST - ppublish SO - J Adv Prosthodont. 2018 Feb;10(1):73-78. doi: 10.4047/jap.2018.10.1.73. Epub 2018 Feb 12.