Background: Camouflage treatment of skeletal Class II malocclusion can be performed using extraction or non-extraction techniques. These treatments can cause changes in occlusal plane. Steep occlusal plane during corrective treatment generally relapses after active orthodontic treatment, resulting in unstable interdigitation. Purpose: This study aims to determine and evaluate changes in occlusal plane inclination in skeletal Class II malocclusion cases using extraction or non-extraction techniques of the permanent maxillary first premolar. Methods: The samples consisted of initial and final cephalometry of 40 adult patients with skeletal Class II malocclusion divided into two groups, namely extraction of the permanent maxillary first premolar and non-extraction group. The inclination of occlusal planes in both groups was measured using the ImageJ software, then the factors associated with these changes were observed. Furthermore, the occlusal plane inclination was compared between the extraction and non-extraction groups by using t-test. Results: The occlusal plane inclination in the non-extraction group increased slightly, while the inclination in the extraction group increased significantly (p = 0.017, p-value < 0.05). However, there was no correlation found in the occlusal plane inclination between the extraction and non-extraction groups (p = 0.07, p-value < 0.05). Conclusion: Class II malocclusion correction with either extraction or non-extraction of the maxillary first premolar increased the inclination of the occlusal plane. This study indicated that control of the occlusal plane inclination is highly essential.
The prevalence of Class III malocclusion in the Asian population is between 9% to 19%. Early treatment for Class III malocclusion can be done with some modified intervention on the growth stage. The inverted labial bow appliance was applied on Class III malocclusion patient in growth period show an effective result. The study showed the effectiveness of inverted labial bow appliance on Class III malocclusion. A 9 years 4 months old girl patient came with unaesthetic problem. Lateral cephalometric examination revealed a skeletal Class III malocclusion (ANB -1°, Wits appraisal -8 mm). Removable orthodontic appliance with inverted labial bow and expansion screw was applied on the maxilla of this patient. The treatment was carried out for 9 months. The result of this treatment was skeletal Class I (ANB 2°, Wits appraisal -4 mm). This procedure was simple and effective to correct the skeletal Class III malocclusion on growth stage patient.
The article focuses on speech production in relation to malocclusion. It investigates how malocclusion could affect sound production and articulating clearly. The article also discusses how orthodontists could fix malocclusion and improve the sound production. Speech production is a complicated process involving several speech organs, including the mouth cavity. Malocclusion can have an adverse effect on pronunciation, especially on specific speech sounds. It can also cause compensatory articulation problems, which can affect pronunciation further. Certain speech sounds, such as /s/, /z/, /t/, /d/, /l/, /r/, / θ /, and /t/, can be affected by malocclusion. Different types and levels of malocclusions may have different effects on pronunciation. It is necessary to speak with an orthodontist to determine the most appropriate therapy for malocclusion. Proper diagnosis and treatment can assist in reducing the impact on pronunciation. Additionally, speech and language therapy may help in the development of speech. The article concludes with an overview of the available treatments for speech production, the potential impacts of malocclusion can be minimized.
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