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Outcome of periodontal-orthodontic treatment in periodontitis susceptible patients. Part III: A CBCT study of alveolar bone changes
Jönköping University, School of Health and Welfare, HHJ. ADULT. Department of Orthodontics, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania.ORCID iD: 0000-0001-8364-0510
Department of Oral and Maxillofacial Radiology, Sahlgrenska Academy, Institute of Odontology, University of Gothenburg, Gothenburg, Sweden.
Jönköping University, School of Health and Welfare, HHJ. Oral health. Department of Orthodontics, Institute for Postgraduate Dental Education, Jönköping, Sweden.ORCID iD: 0000-0002-3223-0068
Jönköping University, School of Health and Welfare, HHJ, Dep. of Natural Science and Biomedicine. Jönköping University, School of Health and Welfare, HHJ. Oral health. Jönköping University, School of Health and Welfare, HHJ. ARN-J (Aging Research Network - Jönköping). Department of Periodontology, Institute for Postgraduate Dental Education, Jönköping, Sweden.ORCID iD: 0000-0001-5145-8220
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(English)Manuscript (preprint) (Other academic)
National Category
Dentistry
Identifiers
URN: urn:nbn:se:hj:diva-39349OAI: oai:DiVA.org:hj-39349DiVA, id: diva2:1203644
Note

Included in thesis in submitted manuscript form.

Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2018-05-04
In thesis
1. Studies on orthodontic treatment in subjects with periodontal disease
Open this publication in new window or tab >>Studies on orthodontic treatment in subjects with periodontal disease
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The thesis focuses on periodontal-orthodontic treatment of adult subjects with periodontal disease.

Aims: The overall aim of this thesis was to explore the effects, risks and benefits of periodontal-orthodontic treatment on periodontal tissues in subjects with periodontal disease.

Methods: The research was conducted through a systematic literature review (Study 1), a randomised controlled trial (Study 2) and cone beam computed tomography examinations (Studies 3 and 4). The clinical part of the thesis was designed as a randomised controlled trial, which aimed to compare two periodontal treatment timing strategies regarding the effect of orthodontic treatment on periodontal status (Study 2). Fifty subjects with periodontal disease were randomly assigned either to the test (periodontal treatment simultaneous with orthodontic treatment) or control group (periodontal treatment before the start of orthodontic treatment). Initial treatment included oral hygiene instruction, supra- and sub-gingival debridement and was performed for all study patients. Nonsurgical and subsequent surgical periodontal treatment was performed at different time points for the test and control groups. Orthodontic treatment was performed with a straight-wire appliance. Clinical attachment level (CAL) change was chosen as a primary outcome variable. All patients were examined by cone beam computed tomography (CBCT) before and after orthodontic treatment to explore the extent of external apical root resorption (EARR) (Study 3) and changes in alveolar bone levels (ABL) (Study 4).

Results: The findings in the systematic literature review yielded absence of randomized controlled trials orcontrolled clinical trials on comprehensive orthodontic treatment in subjects with periodontal disease. No difference in CAL change, EARR and ABL was found whether orthodontic treatment was performed simultaneously with (test group patients) or after (control group patients) periodontal treatment. Results yielded a median CAL change (sites CAL ≥4 mm) of 0.4 mm (Q1, Q3: 0.19, 0.61). Gain in clinical attachment level was observed in 22 (88%) patients in both treatment groups. CAL remained unchanged in an average of 3/4 of the sites; CAL gain was observed in an average of 1/4 of the sites. Root lengths were shortened in a median of 80.7% (Q1, Q3: 68.0, 90.0) of orthodontically moved teeth with a mean EARR of 1.2 mm (SD 0.44). EARR of <2 mm was observed in 82% of teeth. ABL levels remained unchanged on a mean of 69.3% (SD 8.8) of surfaces, ABL improved on a mean of 15.6% (SD 7.4) of surfaces, more on the mesial and distal, and ABL decreased on a mean of 15.1% (SD 7.5) of surfaces, more on the buccal and lingual.

Conclusions: Based on the results of the present research it can be concluded that periodontal-orthodontic treatment under optimal conditions (experienced clinicians and patients with excellent oral hygiene routines overtime), if needed, could be included in the rehabilitation of patients with periodontal disease without deleterious effects. However, there are two important prerequisites: meticulous personal oral hygiene of the patient and optimal sub-gingival control of inflammation before and throughout the combined treatment.

Place, publisher, year, edition, pages
Jönköping: Jönköping University, School of Health and Welfare, 2018. p. 124
Series
Hälsohögskolans avhandlingsserie, ISSN 1654-3602 ; 090
Keyword
orthodontic treatment, periodontal disease, periodontal treatment, clinical attachment level, external apical root resorption, alveolar bone level
National Category
Dentistry
Identifiers
urn:nbn:se:hj:diva-39350 (URN)978-91-85835-89-8 (ISBN)
Public defence
2018-06-01, Forum Humanum, School of Health and Welfare, Jönköping, 09:00 (English)
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Supervisors
Note

On cover: The Institute for Postgraduate Dental Education, Jönköping, and Lithuanian University of Health Sciences

Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2018-05-04Bibliographically approved

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Zasčiurinskienė, EglėLindsten, RuneJansson, Henrik

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