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Clinical Oral Investigations

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Open Access 01-11-2019 | Cystectomy | Original Article

Calculation of postoperative bone healing of cystic lesions of the jaw—a retrospective study

Authors: Christoph Sacher, Daniel Holzinger, Paul Grogger, Florian Wagner, Gregor Sperl, Rudolf Seemann

Published in: Clinical Oral Investigations | Issue 11/2019

Abstract

Objectives

There is a long history of studies into cystic lesions of the jaws. However, there is little data on postoperative bone regeneration. The aim of the study was to calculate the size of the residual bone lesions after cystostomies and cystectomies to predict the postoperative bone healing.

Material and methods

This retrospective study focused on patients undergoing cystectomy (n = 114) or cystostomy (n = 86), who were treated for cystic lesions between 2010 and 2015. New formulas were developed to measure the decrease in lesion sizes using the craniocaudal and mesiodistal diameters from preoperative as well as postoperative radiographs (panoramic radiographs, CT scans, CBCT). With these predictive models (calculated by linear regression analyses), it is possible to calculate how the lesions would shrink using initial size of the cyst and time after surgery for both dimensions.

Results

After cystostomy, the mesiodistal size was initial size 6.0 + 0.7 × initial size − 9.4 × time. The craniocaudal size was 5.1 + 0.7 × initial size − 7.3 × time. After cystectomy, the mesiodistal size was 0.4 + 0.7 × initial size − 8.4 × time. The craniocaudal size was 0.4 + 0.5 × initial size − 6.4 × time (R² = 0.59 and 0.67, respectively).

Conclusion

These formulas are suggested to be used to calculate residual size of bone lesion after cystostomy and cystectomy to predict postoperative bone healing.

Clinical relevance

The formulas are based on deliberately simple measurement using only panoramic radiographs to encourage their application in daily clinical practice.

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Title: Calculation of postoperative bone healing of cystic lesions of the jaw—a retrospective study
Authors: Christoph Sacher
Daniel Holzinger
Paul Grogger
Florian Wagner
Gregor Sperl
Rudolf Seemann
Publication date: 01-11-2019
Publisher: Springer Berlin Heidelberg
Keyword: Cystectomy
Published in: Clinical Oral Investigations / Issue 11/2019
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-019-02826-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Calculation of postoperative bone healing of cystic lesions of the jaw—a retrospective study

Abstract

Objectives

Material and methods

Results

Conclusion

Clinical relevance

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objectives

Material and methods

Results

Conclusion

Clinical relevance

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