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Evaluation of Disclusion Time in Various Angle's Malocclusions by T-Scan III System
Titirat Chutchalermpan1, Jittima Pumklin2, Thosapol Piyapattamin3
1Ban Na Hospital, Amphoe Banna, Nakhon Nayok, Thailand.
Objective:
The main purpose of this article is to evaluate the disclusion time (DT) in the lateral excursions and protrusion among subjects with Angle's malocclusions using a T-Scan III system.
Materials And Methods:
One hundred subjects with malocclusions were divided into Class I, Class II division 1, Class II division 2, and Class III (n = 25 per group). All groups' DT of each excursion was evaluated by a T-Scan III system.
Statistical Analysis:
One-way analysis of variance, followed by a post hoc test, was used to analyze the numerical data at p < 0.05.
Results:
In the respective malocclusions, means ± standard deviations in second(s) of the DT were 2.08 ± 0.65, 2.13 ± 0.74, 2.12 ± 0.72, and 3.19 ± 1.34 during left excursion; 2.15 ± 0.94, 2.58 ± 1.16, 2.37 ± 1.07, and 3.28 ± 1.25 during right excursion; and 1.88 ± 0.99, 2.08 ± 1.11, 2.07 ± 0.68, and 3.01 ± 1.53 during protrusion. When compared to Class I and Class II malocclusions, Class III showed a significantly higher mean DT of each excursion (p < 0.05).
Conclusion:
Class III had the significantly highest mean DT of each excursion and the significantly longest DT in all excursions.
