Clinical Research Directory

Construction of a Multidimensional Risk Prediction Model for Severe Early Childhood Caries

This study aims to address the high prevalence and recurrence rate of severe early childhood caries (S-ECC) by breaking away from the traditional single biological factor perspective and introducing the theories of "24-hour activity behavior" and "family psychological stress". By collecting clinical and behavioral data from 1,200 preschool children and their parents, it explores the association pathways between parental burnout, children's executive function, sleep/dietary behaviors and S-ECC, and builds a high-precision risk prediction model to provide evidence-based support for the clinical development of personalized prevention strategies.

Intraoral Camera-Assisted Parent Training

The aim of this randomized controlled trial is to test the null hypothesis that parent education using an intraoral camera has no effect on children's oral hygiene levels, parental oral health literacy, or plaque accumulation on first permanent molars compared with standard verbal education. 40 children aged 5-7 and their parents will be randomly assigned to two groups. The intervention group will receive real-time visualization of dental conditions and brushing techniques using an intraoral camera, while the control group will receive standard verbal education using a brushing model. Outcomes include children's plaque and gum health and ICDAS caries scores. Secondary outcomes include Occlusal Plaque Index (OPI) on first molars. Assessments will be conducted at baseline and 1-month follow-up. This study tests whether intraoral camera-assisted education leads to better oral hygiene outcomes in children, improves parents' oral health literacy, and reduces plaque accumulation on the first permanent molars compared to standard verbal education.

Alveolar Ridge Preservation Following Tooth Extraction.

Bone resorption after a tooth extraction is a generally accepted knowledge and has been demonstrated by many animal and human studies. Especially during the first three months followed by the tooth extraction, the volume of bone may change significantly without any interference. Thus, doing a ridge preservation procedure following the extraction is a common standard of care method to maintain the socket volume if implant placement is considered as a treatment option in the future. A variety of materials and methods have been used for ridge preservation. However, it's still inconclusive to determine the best material to maintain the ridge dimension, especially for membrane placement that allows for space maintenance to protect the grafting material. Furthermore, there is no evidence to show any treatment rationale is superior to any other ridge preservation method. In general, the membrane serves the function of the barrier and space protector. The periodontal surgeon use membranes to exclude the epithelium growth and to limit the collapse of the soft tissue into the healing alveolar socket. Regarding resorbable and non-resorbable membrane materials, both serve the function of protecting the graft material from the oral cavity. However, there are also many demonstrating that without membranes the extraction socket healed nicely without any interferences. The question to us is: Do we need the membrane to exclude the epithelium or any kind of surgical dressing material is sufficient enough to preserve the volume of the extracted ridge? The object of this study is to compare five popular membranes on the market that present different characteristics of the membranes.

Extraction of the Compromised First Permanent Molars

Compromised first permanent molars (FPM), whether diagnosed with severe molar incisor hypomineralization (MIH), irreversible pulpities, or necrosis, require frequent re-treatment consequently entering the restorative cycle, which leads to their inevitable extraction and implant placement. Extraction of compromised first permanent molars in 8-10-year-old children allows the mesial migration of the second permanent molars during their eruption, thereby favoring spontaneous space closure as a permanent solution.

Clinical Performance and Acceptance of Bioflx Crowns

Treating pediatric patients with early childhood caries can be challenging. For clinicians, managing a young child while ensuring high-quality treatment is difficult. It is essential to have the best equipment and materials available. Today, aesthetics are crucial in managing decayed teeth, with zirconia crowns often preferred for their visual appeal, although they require substantial preparation. The newly developed Bioflx crown, combining stainless steel and zirconia properties, offers an alternative solution.

Clinical Evaluation of "Cention Forte" Restorative Material

Resin composites, the first choice of material for the restoration of posterior teeth, still have several drawbacks including their polymerization shrinkage and potential failure of the resin-dentin interface leading to secondary caries. Time-saving and simplified restorative procedures are an ongoing demand for posterior applications.The bulk-fill resin based composites (BF-RBCs), has been developed with an attempt to speed up the restoration process by enabling up to 4- or 5-mm thick increments to be cured in one step. The photo-polymerized single-step BF-RBC materials seem to have some limitations in terms of adequate polymerization. Therefore, recently, the use of dual-polymeritzed RBCs that are also suitable for bulk-fill application with additional bioactive properties such as acid-neutralizing ion release has been offered as an alternative to photo-polymerized ones. Cention N (Ivoclar Vivadent, Schaan, Liechtenstein) restorative material is one approach that has been introduced as a new material category for this purpose. The hand mixed form is named as Cention N whereas auto-mixed capsule form is Cention. Both of them are resin based composite materials categorised as 'alkasite'. They are self-curing composites with optional photo-polymerzation for full volume (bulk) placement. Their composition is same with only exception of the concentration of the initiators and the powder liquid proportion. Cention is delivered together with Cention Primer to ensures the retention of the filling independent of the preparation. The objective of this prospective clinical trial is to evaluate the clinical performance of Cention and Cention Primer in restoration of Class I and II cavities.

Prevalence of Dental Caries in Patients With Dental Crowding

Dental crowding causes limited access for the toothbrush, and the natural cleansing effect of the teeth by the tongue and saliva is also limited. This malposition allows for prolonged food accumulation, bacterial and plaque retention, which are important factors for the initiation and progression of dental caries.

Trial With Two New Tooth-colored Restorative Materials in Class I/II Cavities

This is a randomized-controlled clinical trial to investigate the success rate of two new tooth-colored restorative materials in class I and II cavities over 5 years according to FDI criteria scores (1, 2 and 3).