Clinical and radiographic comparison of the effects of two types of fixed retainers on periodontium - A randomized clinical trial

Background Most orthodontists believe that fixed retainers are necessary to maintain ideal dental relationships. However, untoward side effects might result from their long-term placement. The aim of this study was to evaluate the clinical and radiographic effect of two commonly used fixed retainers...

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Published in:Progress in orthodontics 2014-08, Vol.15 (1), p.47-47, Article 47
Main Authors: Torkan, Sepideh, Oshagh, Morteza, Khojastepour, Leila, Shahidi, Shoaleh, Heidari, Somayeh
Format: Article
Language:English
Subjects:
Adolescent
Composite Resins - chemistry
Dental Arch - anatomy & histology
Dental Arch - diagnostic imaging
Dental Calculus - classification
Dental Materials - chemistry
Dental Plaque Index
Dentistry
Follow-Up Studies
Gingivitis - classification
Humans
Medicine
Oral Hygiene Index
Orthodontic Appliance Design
Orthodontic Retainers
Orthodontic Wires
Periodontal Index
Periodontium - anatomy & histology
Periodontium - diagnostic imaging
Radiography, Bitewing - methods
Radiography, Dental, Digital - methods
Treatment Outcome
Young Adult
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Summary:Background Most orthodontists believe that fixed retainers are necessary to maintain ideal dental relationships. However, untoward side effects might result from their long-term placement. The aim of this study was to evaluate the clinical and radiographic effect of two commonly used fixed retainers on the health of the periodontium. Methods Thirty patients were randomly divided into two groups to receive either a fiber-reinforced composite retainer or a spiral wire retainer extended on the lingual surfaces of both maxillary and mandibular arches from canine to canine. Periapical radiographs were obtained from the patients at the time of placement of the retainers and after the 6-month period to assess the radiographic conditions of the periodontium. Clinical examination was carried out at the same two time intervals. Results Even though there were no significant differences between the two groups of study at the beginning of the trial, there were statistically significant differences after the 6-month follow-up regarding the main outcomes of the study. Nearly all indices showed to deteriorate after 6 months in the fiber-reinforced group, while in the spiral wire group, this was not the case. As for the secondary outcomes, radiographic examination did not reveal any statistically significant differences after 6 months or between the two groups. Conclusions It can be concluded that spiral wire retainers elicit less detrimental periodontal response in the short-term follow-up compared to fiber-reinforced composite retainers as revealed by the primary outcomes of the study. Trial registration ClinicalTrials.gov: NCT01314729
ISSN:2196-1042
1723-7785
2196-1042
DOI:10.1186/s40510-014-0047-8