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Published in: Oral and Maxillofacial Surgery 3/2016

01-09-2016 | Original Article

Experimental study on penetration of dental implants into the maxillary sinus at different depths

Authors: Lutfi Mohamed Mohamed Elhamruni, Hamdy Abdelmegeed Mohamed Marzook, Wael Mohamed Said Ahmed, Mohamed Abdul-Rahman

Published in: Oral and Maxillofacial Surgery | Issue 3/2016

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Abstract

Objective

The purpose of this study was to investigate the effect of the dental implant penetration into the maxillary sinus cavity in different depths on implant and sinus health in a dog model.

Materials and methods

The study sample included eight titanium dental implant placed in four female dogs immediately after extraction of the first maxillary molar in the palatal socket and assigned into four groups according to the protruding of implant tips (control group A = 0 mm, and study groups B, C, and D with protrusion of 1, 2, and 3 mm, respectively). The bone blocks of the implants were harvested 5 months postoperatively and evaluated by cone beam computed tomography (CBCT) and histological analysis.

Results

The whole groups showed no signs of inflammation during the 5-month period of the study. The tips of the implants in group B with penetrating depths of 1 mm were found to be fully covered with newly formed bone. The tips of the implants in group C with penetrating depths of 2 mm were exposed in the sinus cavity and showed partially new bone coverage, while depths of 3 mm in group D were found to have no bone formation and the dental implant fixture sites were communicated with the sinus cavity. No significant differences were found among the groups regarding implant stability.

Conclusion

Despite the protrusion extents, penetration of dental implant into the maxillary sinus with membrane perforation does not compromise the sinus health and the implant in canine.
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Metadata
Title
Experimental study on penetration of dental implants into the maxillary sinus at different depths
Authors
Lutfi Mohamed Mohamed Elhamruni
Hamdy Abdelmegeed Mohamed Marzook
Wael Mohamed Said Ahmed
Mohamed Abdul-Rahman
Publication date
01-09-2016
Publisher
Springer Berlin Heidelberg
Published in
Oral and Maxillofacial Surgery / Issue 3/2016
Print ISSN: 1865-1550
Electronic ISSN: 1865-1569
DOI
https://doi.org/10.1007/s10006-016-0568-z

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