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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/22806
Title: 
BONE SPREADER TECHNIQUE: A PRELIMINARY 3-YEAR STUDY
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0160-6972
Abstract: 
The purpose of this study was to observe the clinical outcome of bone spreading and standardized dilation of horizontally resorbed bone during immediate implant placement using a "screw-type" configuration of expansion and threadformers. Fifty-three patients were included in this study, and 41 edentulous areas in anterior and posterior maxillas were treated. Sixty-eight implants were placed using an insertion torque of at least 40 Ncm. Abutments were delivered 4 to 6 months after implant placement. The overall failure percentage was 4.41% (3 failures). A retrieved analysis of I implant removed at 3 years after placement demonstrated bone resorption down to the level of the third thread. The bone spreader technique is different from Summers' osteotome, both in clinical use and in armamentarium. The main advantage of the crest-expanding technique is that it is a less invasive procedure; the facial wall expands after the medullary bone is compressed against the cortical wall. Within the limits of this preliminary study, the cumulative survival rate for this method of implant placement is 95.58% at 3 years. This study confirms that a bone spreader used in the maxilla shows an unusually low failure rate after 3 years.
Issue Date: 
1-Jan-2009
Citation: 
Journal of Oral Implantology. Lawrence: Allen Press Inc, v. 35, n. 6, p. 289-294, 2009.
Time Duration: 
289-294
Publisher: 
Allen Press Inc
Keywords: 
  • spreader
  • threadformer
  • ridge expansion
  • single-stage surgery
Source: 
http://dx.doi.org/10.1563/1548-1336-35.6.289
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/22806
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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