Clinical trial NCT06638983: Effectives of Non-extraction Orthodontic Treatment of Angle Class I Malocclusion
Official title: Effectives of Non-extraction Orthodontic Treatment of Angle Class I Malocclusion: A Non-randomized Pre-post Interventional Study
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Angle Class I
Keywords: Non-extraction
orthodontics treatment
Angle class I malocclusion
Lead sponsor: Can Tho University of Medicine and Pharmacy
Sponsor class: OTHER
First posted: 2024-10-15
Enrollment: 41
Sex: ALL
Minimum age (years): 15
Maximum age (years): 25
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: Cephalometric radiographs, and extraoral and intraoral photographs, and cast impressions were collected before and after intervention. The weighted PAR Index (Peer Assessment Rating) employed to determine outcome of orthodontic treatment. Also the following soft tissue and bone indexes were assessed before and after intervention, SNA, SNB, ANB, SN_GoGn, SN_Occplane, U1_NAmm, U1_NA, L1_NBmm, L1_NB, U1_L1, U1_Mp, Ls_E, Li_E, and Nasolabial_angle. Intervention was MBT (MBT System, 3M Unitek, USA) non-extraction fixed orthodontic treatment. One experienced researcher analyzed and interpreted all of the cephalometric images used in the study using the WedCeph (https://webceph.com/). Data were analyzed by linear regression and T-Test statistical test using R software version 4.3.0 (R Foundation for Statistical Computing, Vienna, Austria) by a blinded statistician.
Primary purpose: OTHER

Brief summary: Introduction: The investigators aimed to evaluate the effectiveness of non-extraction orthodontic treatment for Angle class I malocclusion.

Detailed description: Many people are also concerned about their oral health. When social communication is more important, aesthetic concerns also receive a lot of attention. A beautiful smile can boost self-assurance and empathy. Angle class I malocclusion is prevalent, and dental malocclusion is a significant percentage of the population at all ages . Tooth extraction is a controversial topic in orthodontics, with the general view being against it. Angle and his students argued against it, but Charles Tweed saw recurrence in the 1930s after retreatment without extraction and retreatment with extraction. The use of tooth extraction therapy increased in the 1960s but has become less common since the late 20th century. The science of orthodontics has made significant advancements under the principle of least invasiveness, but the debate remains about whether to consider tooth extraction. The contemporary view believes that the majority of patients may and should be treated without tooth extraction, but in rare circumstances, extraction is necessary to make up for crowding and excessive incisor protrusion that harm the beauty. In truth, each individual must be thoroughly evaluated in light of their bite, cosmetic condition, and stability in the wake of therapy before any course of action is recommended. The investigators aimed to evaluate the effectiveness of non-extraction orthodontic treatment for Angle class I malocclusion.

Eligibility criteria: Inclusion Criteria:

* Patients (≥ 15 years) with indicated Angle class I malocclusion and missing space ≤9mm
* Cervical vertebral maturation stages 5, 6, (CS5, CS6): cervical vertebrae 2, 3, and 4 have a concave curved lower border and have at least one rectangle C3, C4 cervical vertebra upright or at least square
* No prior orthodontic treatment
* Fully erupted permanent teeth (except third molars)
* Voluntary research participation

Exclusion Criteria:

Face soft tissue surgical procedures, periodontal disease, and maxillofacial congenital anomalies

Primary outcomes:
measure: We aimed to evaluate the effectiveness of non-extraction orthodontic treatment for Angle class I malocclusion.
timeFrame: Cephalometric radiographs, and extraoral and intraoral photographs, cast impressions and PAR Index (Peer Assessment Rating) were collected before and after intervention through study completion, an average of 2 years
Secondary outcomes:
Other outcomes:
Locations:
city: Cần Thơ
country: Vietnam
facility: Can Tho University of Medicine and Pharmacy
Study officials:
affiliation: Can Tho University of Medicine and Pharmacy
name: Diem Chau Hong, DDS
role: PRINCIPAL_INVESTIGATOR
References:
citation: Baik KM, Anbar G, Alshaikh A, Banjar A. Effect of Social Media on Patient's Perception of Dental Aesthetics in Saudi Arabia. Int J Dent. 2022 Feb 27;2022:4794497. doi: 10.1155/2022/4794497. eCollection 2022.