PMID- 28543806
OWN - NLM
STAT- MEDLINE
DCOM- 20180816
LR  - 20180816
IS  - 1600-0501 (Electronic)
IS  - 0905-7161 (Linking)
VI  - 28
IP  - 12
DP  - 2017 Dec
TI  - Effect of microthreads on coronal bone healing of narrow-diameter implants with 
      reverse-tapered design in beagle dogs.
PG  - 1532-1542
LID - 10.1111/clr.13022 [doi]
AB  - OBJECTIVES: The objective of this study was to investigate the effect of 
      microthreads on the coronal bone healing of narrow-diameter implants with 
      reverse-tapered design. MATERIAL AND METHODS: A total of 52 implants were 
      classified into two groups according to presence or absence of coronal 
      microthreads, the reverse-tapered narrow-diameter implant (RTN) group, and the 
      reverse-tapered narrow-diameter implant with microthreads (RTNM) group. The 
      implants were installed in split-mouth design in the edentulous mandible of six 
      dogs. Three animals were sacrificed at 4 weeks and three at 8 weeks. Resonance 
      frequency analysis, bone measurement using microcomputed tomography (micro-CT), 
      removal torque test, and histometric analysis were performed. RESULTS: No 
      significant differences in implant stability quotient value were observed between 
      the groups at baseline, 4 weeks, or 8 weeks. Bone measurement using micro-CT 
      showed that bone-implant contact volume (BICV) and bone-implant contact volume 
      ratio (BICVR) in the coronal part of RTNM were statistically higher than those in 
      RTN at 4 and 8 weeks. Histometric analysis showed statistically higher 
      bone-implant contact length (BICL) in the coronal part of RTNM than in RTN at 
      4 weeks; however, bone-implant contact ratio (BICR) was not significantly 
      different between the groups. At 8 weeks, the BICL and BICR did not differ 
      significantly between the groups. Removal torque test showed no significant 
      differences between the groups at 4 and 8 weeks. CONCLUSIONS: The microthreads 
      might facilitate more coronal bone-implant contact due to increased surface areas 
      at an early healing phase; however, they did not significantly affect coronal 
      bone healing at 8 weeks.
CI  - (c) 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
FAU - Chang, Yun-Young
AU  - Chang YY
AUID- ORCID: 0000-0002-0313-9804
AD  - Division of Periodontology, Department of Dentistry, Inha International Medical 
      Center, Incheon, Korea.
FAU - Kim, Su-Hwan
AU  - Kim SH
AD  - Department of Periodontics, Asan Medical Center & Department of Dentistry, 
      University of Ulsan College of Medicine, Seoul, Korea.
FAU - Park, Keun-Oh
AU  - Park KO
AD  - Department of Bio-fibers and Materials Science, Kyungpook National University, 
      Daegu, Korea.
FAU - Yun, Jeong-Ho
AU  - Yun JH
AD  - Department of Periodontology, School of Dentistry and Institute of Oral 
      Bioscience, Chonbuk National University, Jeonju, Korea.
AD  - Research Institute of Clinical Medicine of Chonbuk National University-Biomedical 
      Research Institute of Chonbuk National University Hospital, Jeonju, Korea.
LA  - eng
PT  - Journal Article
DEP - 20170522
PL  - Denmark
TA  - Clin Oral Implants Res
JT  - Clinical oral implants research
JID - 9105713
RN  - 0 (Dental Implants)
MH  - Animals
MH  - Dental Implantation, Endosseous
MH  - *Dental Implants
MH  - *Dental Prosthesis Design
MH  - Dogs
MH  - Implants, Experimental
MH  - Osseointegration/*physiology
MH  - *Wound Healing
MH  - X-Ray Microtomography
OTO - NOTNLM
OT  - animal
OT  - dental implant
OT  - histology
OT  - microcomputed tomography
OT  - osseointegration
EDAT- 2017/05/26 06:00
MHDA- 2018/08/17 06:00
CRDT- 2017/05/26 06:00
PHST- 2017/04/07 00:00 [accepted]
PHST- 2017/05/26 06:00 [pubmed]
PHST- 2018/08/17 06:00 [medline]
PHST- 2017/05/26 06:00 [entrez]
AID - 10.1111/clr.13022 [doi]
PST - ppublish
SO  - Clin Oral Implants Res. 2017 Dec;28(12):1532-1542. doi: 10.1111/clr.13022. Epub 
      2017 May 22.