Global research trends of studies related to mouthguards and dental injuries in sports activities: a bibliometric analysis.

Mouthguards (MGs) are essential devices for the protection of sports-related orofacial injuries. Mapping of the literature on this subject may help to guide future studies; therefore, this review aimed to characterize the research trends of studies related to MGs and dental injuries in sports activities through bibliometric analysis of in vivo studies concerning the frequency of MG use; knowledge, awareness, perception, and/or attitude about MGs; and adaptation (fit) of MGs in the mouth and/or prevention of traumatic dental injuries (TDIs). A literature search was performed in 6 databases for studies published up to April 2022. Text mining and analysis software was used to extract and evaluate data related to the study author, country, keywords, journal of publication, and year. Additionally, data related to the type of study, outcome, study population, age group, evaluation method, type of MG, sport classification, and sport category were extracted and analyzed. Of 6140 records identified, 222 were included in the analysis. Most of the articles came from the United States (n = 39; 17.5%) and dentistry journals (n = 145; 65.3%). The journal Dental Traumatology (n = 60; 27.0%) presented the highest number of publications. Most studies were observational (n = 195; 87.8%) and evaluated the frequency of MG use (n = 163; 44.4%). Studies were carried out in athletes (n = 181; 82.6%) and adults (n = 169; 49.1%) using questionnaires or interviews for assessment (n = 206; 84.1%). Only 89 (40.1%) studies evaluated the type of MG, mostly involving contact sports. Custom-made MGs were most commonly studied. More studies involving coaches, dentists, and child and teenaged athletes are warranted to help prevent sportsrelated TDIs in young teeth, mainly through interventional studies on the perceptions of and knowledge about MGs among these populations.

A 14-Year Follow-Up Study of Sequelae in Primary Teeth and Permanent Successors After Dental Trauma

ABSTRACT Objective: To evaluate the presence of sequelae in primary teeth and their permanent successors, as well as associations between TDI and the presence of sequelae in both teeth. Material and Methods: In this 14-year retrospective study, 2.290 records were reviewed, 192 patients who suffered dental trauma in primary teeth were followed until the eruption of successor teeth were included. Descriptive, chi-square, and regression logistic with generalized estimating equations tests were performed (p<0.05). Results: 362 primary and successor teeth were followed. Sequelae were present in 71.8% of primary teeth and 25.7% of their successors. Teeth with complicated fracture (100%), extrusion (100%) and avulsion (100%) resulted in the largest amounts of sequelae in primary teeth and intrusion (61%) on their successors. Age was associated with sequelae in permanent teeth (p<0.01). Extrusion (OR 10.06; CI 2.12-47.63) and intrusion (OR 7.51; CI 2.73-20.70) had a higher risk to cause sequelae in primary and permanent teeth, respectively. Conclusion: The type of injury involved influenced the sequelae in traumatized teeth and their successors, and the age of the child influenced the presence of sequelae in permanent teeth.