Active clinical trials for "Malocclusion"

The purpose of this study is to compare the effectiveness and efficiency of labial versus lingual biocreative therapy in achieving en masse retraction of the maxillary anterior teeth in subjects with class II malocclusion requiring upper first premolar extraction.

We will treat patients with class I malocclusion who have moderate crowding (4-6 mm) according to Little's irregularity index and asses the efficacy of low level laser therapy in accelerating orthodontic tooth movement . There is two groups : treated with Low level laser therapy (LLLT) treated traditionally without any irradiation Patients will be randomly allocated in any group and all data will be collected through photographs when leveling and alignment completed. Also pain levels will be assessed using numeric rating scale to compare between the two groups and if laser really can relief pain or not .

This study aims at evaluating the effects of mandibular advancement on pharyngeal airway space and nocturnal breathing in children with skeletal class II division1 malocclusion. Fifty patients will be enrolled in the study divided into control and experimental groups.

Miniscrew-supported maxillary expanders provide advantages over conventional tooth-supported expanders. However, there is no consensus in the literature regarding their activation protocol. The purpose of the clinical trial is to evaluate and compare the effects of slow and rapid activation rates of miniscrew-supported expanders on the skeletal changes, dento-alveolar changes and the pain experience.

the study aimed to clinically evaluate the effect of micro-osteoperforations on the rate of tooth movement, as evaluated by its effect on the rate of canine retraction.

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.

The force exerted by the rapid maxillary expansion (RME) appliances provides expansion of the transverse dimension by splitting of the midpalatal suture. This expansion results in three-dimensional (3D) changes in maxillary position which also effects circummaxillary surrounding structures. The aim of this randomized clinical trial (RCT) was to evaluate the effects of tooth-borne and tooth-bone-borne rapid maxillary expansion (RME) on soft tissue with stereophotogrammetry.

This study aims to assess the dental changes, periodontal health and the pulp vitality in mini-screw supported en-masse retraction associated with traditional or flapless corticotomy techniques. 40 adult patients exhibiting class II division 1 malocclusion requiring upper first premolar extractions followed by en-masse retraction will participate in the study. They will be randomly and equally distributed into two groups: traditional corticotomy (20 patients) versus flapless corticotomy (20 patients). The corticotomy procedure will be performed pre-retraction. The dental changes will be assessed using dental casts. The impressions will be taken after finishing the leveling and alignment phase and before starting the en-masse retraction (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), and 5 months (T5) following the onset of en-masse retraction. The final impression will be considered at the end of the en-masse retraction (when the canines reach Class Ι relationship).

The long time needed for orthodontic treatment is considered one of the biggest obstacles that make patients refuse to undergo orthodontic treatment. It also has many disadvantages including higher caries rates, gingivitis, and root resorption. Therefore, the purpose of this study is to evaluate the efficiency of two new noninvasive methods (Low-Level Laser Therapy and Corticopuncture) in accelerating orthodontic tooth movement for the implant supported En-Masse retraction of the six maxillary anterior teeth.

The aim of this study is to evaluate dentoskeletal changes concomitant with different three levels of force application for maxillary protraction in growing patients with skeletal class 3 malocclusion.