PMID- 23377051
OWN - NLM
STAT- MEDLINE
DCOM- 20140206
LR  - 20181202
IS  - 1942-4434 (Electronic)
IS  - 0882-2786 (Linking)
VI  - 28
IP  - 1
DP  - 2013 Jan-Feb
TI  - Influence of residual bone thickness on primary stability of hybrid self-tapping 
      and cylindric non-self-tapping implants in vitro.
PG  - 84-8
LID - 10.11607/jomi.2587 [doi]
AB  - PURPOSE: To assess the primary stability of a hybrid self-tapping implant and a 
      cylindric non-self-tapping implant in an in vitro test model using polyurethane 
      foam. MATERIALS AND METHODS: Eighty standardized blocks of cellular rigid 
      polyurethane foam, 2 cm long and 1 cm wide, with different thicknesses of 2, 4, 
      6, and 9 mm (n = 10 per group) were cut. Two implant systems--a hybrid 
      self-tapping (Tapered Effect [TE], Straumann) and a cylindric non-self-tapping 
      (Standard Plus [SP] Wide Neck, Straumann) were placed in the block specimens. 
      Subsequently, resonance frequency analysis (RFA) was performed. The RFA 
      measurements were made in triplicate on four aspects of each implant (mesial, 
      distal, buccal, and oral), and the mean RFA value was calculated. Subsequently, 
      the tensile load of the implants was determined by pull-out tests. The data were 
      analyzed using one-way and two-way analysis of variance followed by a post hoc 
      Scheffe test and a t test (alpha = .05). Additionally, the simple linear correlation 
      between the RFA and tensile load values was evaluated. RESULTS: No statistically 
      significant differences were found between TE and SP in terms of RFA at different 
      bone thicknesses. Starting from a bone thickness of 4 mm, TE implants showed 
      significantly higher tensile load compared to SP implants (P = .016 to .040). A 
      correlation was found between the RFA measurements and tensile load. CONCLUSIONS: 
      Mechanically stable placement is possible with TE and SP implants in a trabecular 
      bone model. RFA and tensile load increased with greater bone thickness.
FAU - Divac, Marija
AU  - Divac M
AD  - Clinic for Preventive Dentistry, Periodontology and Cariology, Center for Dental 
      Medicine, University of Zurich, Zurich, Switzerland.
FAU - Stawarczyk, Bogna
AU  - Stawarczyk B
FAU - Sahrmann, Philipp
AU  - Sahrmann P
FAU - Attin, Thomas
AU  - Attin T
FAU - Schmidlin, Patrick R
AU  - Schmidlin PR
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Int J Oral Maxillofac Implants
JT  - The International journal of oral & maxillofacial implants
JID - 8611905
RN  - 0 (Dental Implants)
RN  - 0 (Polyurethanes)
RN  - 9009-54-5 (polyurethane foam)
SB  - IM
MH  - Dental Implantation, Endosseous
MH  - *Dental Implants
MH  - Dental Prosthesis Design
MH  - *Dental Prosthesis Retention
MH  - Elasticity Imaging Techniques/*methods
MH  - Humans
MH  - Maxillary Sinus/anatomy & histology
MH  - Osseointegration
MH  - *Polyurethanes
MH  - Tensile Strength/physiology
MH  - Vibration
EDAT- 2013/02/05 06:00
MHDA- 2014/02/07 06:00
CRDT- 2013/02/05 06:00
PHST- 2013/02/05 06:00 [entrez]
PHST- 2013/02/05 06:00 [pubmed]
PHST- 2014/02/07 06:00 [medline]
AID - 10.11607/jomi.2587 [doi]
PST - ppublish
SO  - Int J Oral Maxillofac Implants. 2013 Jan-Feb;28(1):84-8. doi: 10.11607/jomi.2587.