PMID- 20545090
OWN - NLM
STAT- MEDLINE
DCOM- 20100629
LR  - 20161125
IS  - 1723-7785 (Print)
IS  - 1723-7785 (Linking)
VI  - 10
IP  - 2
DP  - 2009
TI  - Immediately loaded mini screws: histological study of the effect of two different 
      orthodontic tooth movement techniques.
PG  - 38-46
AB  - The aim of this study was to assess histologically the bone changes around 
      immediately loaded mini screws and whether there is a difference in those changes 
      upon using corticotomy facilitated (CF) orthodontic tooth movement technique, in 
      comparison to standard (S) orthodontic tooth movement technique. MATERIALS AND 
      METHODS: Six dogs, aged 6-9 months, were used in this study. Extraction of the 
      maxillary second premolar and mini screw placement were done bilaterally in the 
      maxilla. On the right (CF) side, corticotomy was performed. The first premolars 
      were distalized against the mini screws with NiTi coil springs on both sides. The 
      dogs were sacrificed weekly after orthodontic force application. RESULTS: 
      Histological analysis showed that osseous formation was progressive around the 
      mini screw along the period of the study in both groups, although 
      osseointegration was not found. There was a histological difference in the 
      peri-screw bone between the two groups. In (S) side the bone formation started 
      much earlier than the (CF) side. CONCLUSIONS: During the six weeks period of this 
      study the mini screws depended mainly on mechanical interlocking in their 
      retention. The (CF) technique delayed the osseous bone formation around the mini 
      screws in comparison to the (S) technique.
FAU - Fayed, Mona Mohamed Salah
AU  - Fayed MM
AD  - Orthodontic Department, Faculty of Oral and Dental Medicine, Cairo University, 
      Egypt. monasfayed@yahoo.com
FAU - Mehanni, Samah
AU  - Mehanni S
FAU - Elbokle, Nader Nabil
AU  - Elbokle NN
FAU - Mostafa, Yehia Ahmed
AU  - Mostafa YA
LA  - eng
PT  - Journal Article
PL  - Germany
TA  - Prog Orthod
JT  - Progress in orthodontics
JID - 100936353
SB  - IM
MH  - Animals
MH  - Bone Screws
MH  - Dental Stress Analysis
MH  - Dogs
MH  - Miniaturization
MH  - Orthodontic Anchorage Procedures/*instrumentation
MH  - Osseointegration
MH  - Statistics, Nonparametric
MH  - Tooth Movement Techniques/*methods
EDAT- 2009/01/01 00:00
MHDA- 2010/06/30 06:00
CRDT- 2010/06/16 06:00
PHST- 2010/06/16 06:00 [entrez]
PHST- 2009/01/01 00:00 [pubmed]
PHST- 2010/06/30 06:00 [medline]
PST - ppublish
SO  - Prog Orthod. 2009;10(2):38-46.