View clinical trials related to Malocclusion.
Filter by:Malocclusion is a kind of craniomaxillofacial complex deformity caused by heredity, environment, bad habits, trauma, inflammation, tumor and aging. Notably, the last comprehensive national prevalence data on malocclusion in China, which encompassed a significant sample size, dates back over two decades. Given the evolving nature of these epidemiological metrics, such as prevalence rates, it is imperative to update our understanding. Consequently, there is an urgent need for China to undertake a unified, standardized epidemiological survey of malocclusion with a substantial sample size to ensure accurate and timely data collection.
Research Question While the reduction in treatment times and the patient satisfaction after periodontally accelerated osteogenic orthodontics (PAOO) are well sustained in the scientific literature, there is still controversy regarding if grafting leads to i) change of the periodontal phenotype and ii) greater stability of post-orthodontic treatment outcomes, highlighting the need of controlled clinical trials. Aims of the Project The aim of this randomized clinical trial (RCT) is to compare piezocision-assisted orthodontics, concomitant to soft tissue grafting (volume-stable collagen matrix), with piezocision-assisted orthodontics, concomitant to bone grafting with a xenograft and a native collagen membrane, in orthodontic non-growing patients. The primary aim will be to determine the impact of this surgical protocol on the hard and soft tissue changes occurring on the buccal aspect of the dentition. Secondary objectives will include the assessment of the comparative impact on treatment duration, rate of tooth movements, presence of root resorption, periodontal parameters, bone level changes and patient-reported outcome measures (PROMs) between the two groups.
The goal of this clinical trial is to to evaluate and compare the skeletal and dental changes of bone supported Fast Back and bone supported modified Leaf Spring Self-Activated Expander in bilateral distalization of maxillary molars using CBCT in Egyptian people. The main question it aims to answer are: • If bone supported Fast Back and bone supported modified Leaf Spring Self-Activated Expander will be effective in bilateral distalization of maxillary molars The patients will be selected according to the following criteria: 1. Patient with full permanent dentition. 2. Good oral hygiene. 3. None of the patients had received any orthodontic treatment. 4. Class II molar relationship. 5. Minimal or no crowding in the mandibular arch. 6. Non-extraction treatment plan with molar distalization. 7. Low angle cases. 8. No medical problems or active periodontal disease. Researchers will compare between bone supported Fast Back appliance and bone supported modified Leaf Spring Self-Activated and see if they will be effective in maxillary molars distalization.
This study will be performed to evaluate the treatment of posterior cross-bite with modified hyrax & Quad helix appliances and to compare which one will provide better results in relation to chewing difficulty in children with posterior cross- bite in mixed dentition
Orthognathic surgery is a type of jaw surgery where a surgeon cuts the bones of the upper and lower jaw and places them better. There are two ways they can put the bones in the correct place and keep them in place after the surgery. One way, called the "conventional method", is to use a 3D-printed guide called a splint to set the bones in the right place and then screw the bones together using metal plates that the surgeon bends into shape to fit during the surgery. Another way is to use a patient-specific implants (PSI) that has been 3D-printed in titanium beforehand that because of its unique shape both places and keeps all the bones in the correct place after they are screwed in. Both ways of doing it are golden standards, meaning they are already approved. Measuring the accuracy of the surgery is done by comparing the positions of the bones after the surgery with the intended positions of those bones, according to the surgical plan. The closer the achieved position of each bone is to the intended position, the more accurate the result. Measuring the stability of the surgery is done by comparing the positions of the bones after the surgery with the positions of the bones two years later. The less the position is changed, the more stable the result. The goal of this clinical trial is to see how accurate and stable PSIs are in orthognathic surgery when the maxilla is split in 3 pieces, and to compare them with the conventional method in patients with overjet or overbite. The main questions it aims to answer are: - Does using PSIs provide accurate movements of the maxilla pieces? - Does using PSIs provide more accurate movements of the maxilla pieces than the conventional method? - Does using PSIs provide stable movements of the maxilla pieces after 2 years? - Does using PSIs provide more stable movements of the maxilla pieces than the conventional method? Participants will get orthognathic surgery as part of their normal orthodontic treatment. Investigators will compare the PSI and conventional groups to see if the PSIs are more accurate than the conventional method.
Introduction: This study aims to evaluate the gingivitis, periodontal profile and malocclusion in children and adolescents with diabetes. Methods: The sample consisted of 36 children, who were distributed into two groups: DM; n=18 and NDM; n=18. Periodontal parameters considered were plaque Index (PI), gingival Index (GI), probing depth of pocket (PPD), gingival recession (GR) and clinical attachment level (CAL). Gingival biotype clinical parameters: Gingival transparency to probing, Height of keratinized mucosa and Gingival thickness on permanent incisors and molars. Malocclusion were evaluated by the Dental Aesthetic Index (DAI) and the Angle's Classification. The statistical analyses were Shapiro Wilk test and T test.
The present study will be a single-center, split-mouth, randomized controlled clinical trial. Patients undergoing orthodontic treatment with Invisalign aligners will be enrolled after signing the informed consent. Two different flowable composite resins will be evaluated for the performing of attachments using a split-mouth design: - group A: Filtek Supreme Flow (3M Unitek, Monrovia, Calif) - group B: Grandioso Heavy Flow (VOCO GmbH, Cuxhaven Germany) Digital impressions with iTero intraoral scanner will be performed; digital impressions will be performed after 3 months (T1) and 6 months (T2) from the baseline. Digital scans will be used to assess any changes in shape and volume of the attachments per each different time frame. Each tooth will be separated from the others and superimpositions of the single tooth will be performed with ZEISS Inspect software. After attachments placement, the clinicians will be asked to answer, on a scale from 1 to 10, to this questionnaire's questions about the two different flowable composites; each question is repeated for each composite resin. Type of brushing (with manual or electric toothbrush) and hand of brushing will be recorded.
The aim of the present study was to retrospectively compare the clinical use of high-pull headgear versus AMCOP bioactivators for hyperdivergent pediatric patients. Cephalometric radiographs from pediatric patients treated at the Unit of Orthodontics and Pediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy and at the private practice of Dr. Cardarelli, Isernia, Italy will be collected. Cephalometric tracing from Giannì analysis will be performed at the baseline (T0) and after 18 months of treatment (T1).
The aim of the study is to evaluate the most efficient product for the cleaning of Invisalign® clear aligners (Align Technology Inc., San Jose, CA, USA) through objective and subjective assessments after the use of 5 different products. For each aligner, one product is used for 2 weeks until all of them are used, therefore 5 different aligners are required for the study. A periodontal evaluation is conducted to assess variations during the time frame of the study.
In influence of complex correction of dental and musculoskeletal systems on the frequency of relapses of functional disorders in patients with somatic pathologies: a randomized pilot study there will be two groups: Group 1 (control group): Patients in this group will receive standard treatment aimed solely at correcting malocclusions or restoring the integrity of the dentition without interfering with the musculoskeletal system. Group 2 (experimental group): Patients will receive comprehensive treatment, including not only dental correction of bite or restoration of the integrity of the dentition, but also correction of disorders of the musculoskeletal system. The endpoints will be : Primary endpoint: • Frequency of relapses and repeated requests for correction of disorders bite or restoration of the integrity of the dentition within 12 months after treatment. Secondary endpoints: - Change in pain intensity measured by visual analog scale (VAS). - Improvement of functional indicators of the temporomandibular joint, including range of motion. - Improved quality of life, assessed using the OHRQoL (Oral Health Related Quality) scale All endpoints will be evaluated within 12 months.