View clinical trials related to Malocclusion.
Filter by:The duration of orthodontic treatment is one of the exacerbation causes of orthodontic pain. Several methods have been suggested to reduce the duration of orthodontic treatment classified to surgical and non-surgical methods. Researches used minimally invasive surgical methods like corticision, piezocesion, disicion, micro-osteoperforation, and piezopuncture indicated that most of these methods can accelerate dental movement by 20 - 40% without causing additional pain as a result of using those methods. Applying corticision on the lower anterior teeth using a surgical blade and a hammer may accelerate tooth alignment during orthodontic treatment. This study consists of two groups, patients will be randomly assigned to one of these two groups.
Sixty patients need extraction-based treatment of the maxillary first premolars with subsequent retraction of the maxillary canines will be divided randomly into three groups: piezocision group, low-level laser therapy group, and control group. In each group, the canine retraction will be started after completion of the leveling and alignment phase via closed nickel-titanium coil springs applying 150 g of force per side. For anchorage, a soldered trans-palatal arch will be used. Pre- and post distalization dental casts will be assessed to study the rate of canine retraction, as well as, canine rotation and anchorage loss over a follow-up period until a class I canine relationship is achieved.
To compare the effect of two control intervals (once every 4th week or once every 6th week) on the wear time of a Twin Block removable appliance.
The aim of this study is to assess if there are significant differences in the failure rate of stainless steel and ceramic brackets. For this study, patients will be enrolled and divided into two groups, according to the type of brackets (stainless steel or ceramic) used for orthodontic treatment. Failure rates will be recorded every month for 12 months and survival analysis will be performed, together with skeletal and space analysis.
The aim of this study was to evaluate the changes in head posture, position of the hyoid bone, pharyngeal airway and cervical posture after the use of Petit type face mask in patients with skeletal class III malocclusion (ANB angle < 0) with ongoing growth. No other study was found in the literature in which head posture, cervical posture, and hyoid bone position were evaluated after the use of a face mask and compared with a control group consisting of patients of the same age group and the same malocclusion.
To analyze the distalization or distal tooth displacement and derotation angle produced by Carriere Motion Appliance® (CMA) by using a repeatable and reproducible measurement digital technique.
The aim of the present project is to analyze the impact from orthognathic surgery on the upper airway respiratory volume. The primary objective is comparison of differences in the in the airway changes due to maxillary movements and mandibular movements. Secondary objectives are the analysis of any correlation between the magnitude of the movement and the airway volume, correlation between the direction of the movements and the changes in airway volume and correlation with Health-Related Quality of Life (HRQoL). Expected confounding factors like smoking habits and Body Mass Index (BMI) will be analyzed.
This study aims to estimate the levels of pain and discomfort associated with the en-masse retraction of the six upper anterior teeth and assisted by either conventional or flapless corticotomy. Thirty-four adult patients exhibiting class П division 1 malocclusion will be randomly allocated to either the conventional corticotomy group or the flapless corticotomy group, and they will be treated by extraction of maxillary first premolars with applying mini-screws between maxillary second premolar and first molar as temporary skeletal anchorage devices (TSADs). The levels of pain and discomfort will be rated after 24 hours of corticotomy (T1), four days (T2), seven days (T3), 14 days (T4) and after 28 days of corticotomy, by asking the patients to fill in a questionnaire for assessing levels of pain and discomfort.
Patients who have moderate crowding will be treated in this study. The efficacy of showing the predicted alignment of patient's teeth at the end of orthodontic treatment previously to treatment on their expectations from orthodontic treatment and their satisfaction with their teeth alignment will be assessed.
Corticotomy and micro-osteoperforation (MOP) have been proven to accelerate tooth movement and shorten orthodontic treatment time, compared to conventional treatment. MOP is less invasive; however, it is unclear whether it is as effective as a corticotomy. The purpose of this study was to compare the maxillary canine retraction achieved by these techniques.