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A prospective randomized controlled trial on the comparative clinical efficiency and hygiene of a ceramic inter
Abhishek Sinha1, Saurabh Sonar1, Puneet Batra1
1Department of Orthodontics and Dentofacial Orthopedics, Institute of Dental Studies and Technologies (IDST), Ghaziabad, Uttar Pradesh, India.
Background:
The lower canine to canine retainer is one of the most commonly used retention appliance.
Objective:
Compare and assess the clinical efficiency and oral hygiene maintenance with 2 retainers: flexible spiral wire and ceramic interlocking bonded.
Setting And Sample Population:
Orthodontic department of a dental college.
Participants, Study Design And Methods:
Prospective randomized controlled trial that involved 40 patients who had completed orthodontic treatment and were randomly allotted to either group: flexible spiral wire (FSW) or ceramic interlocking retainers. Allocation ratio was 1:1.
Eligibility Criteria:
Completed fixed orthodontic treatment with an acceptable treatment result.
Main Outcomes:
Oral hygiene was assessed at 3 (T1) and 6 (T2) months intervals after debonding using Gingival and Plaque index. The contact point displacement was assessed using 3D model superimposition and bonded retainer failure was noted.
Randomization And Blinding:
Computer-generated random allocation, only data analyzer was blinded.
Statistics:
Data normality was tested using the Shapiro-Wilk and Q-Q plot. Mixed model analysis was used to assess differences between the two groups for the above-mentioned parameters. The failure rate of the retainer was calculated by the Chi-Square test.
Results:
Only the plaque index score was significantly greater in the FSW group and showed a statistically significant difference (P < 0.05), rest of the parameters showed no statistically significant difference over the specified time points, although a mild increase in relapse was noted in both groups No serious harms were reported.
Conclusion:
Both retainers seem to be effective in maintaining the treatment results however the FSW seems to accumulate more plaque over a given period of time thereby mandating proper hygiene maintenance and follow-up.
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