The purpose of the present study was to evaluate the occurrence of dental hard and soft tissue injuries during participation in contact sports, and the awareness and use of mouthguards in a young adult sample of semi-professional or amateur boxers and tae kwon do participants in Turkey. The samples consisted of 274 young adults [174 male (63.5%) and 100 female (36.5%)] aged between 17 and 27 years of which 185 (67.5%) were tae kwon do practitioners, and 89 (32.5%) were boxers. The participants answered a standard questionnaire. All answers were evaluated and then statistical analyses were performed. Of the total sample, 61 of the subjects (22.3%) suffered dental trauma. Of these sufferers, 32 (17.3%) were boxers and 29 (32.6%) were tae kwon do practitioners. It was found that 19 (6.9%) athletes lost their teeth post-trauma. Of the 54 subjects (19.7%) suffering soft tissue injuries, 44 were female (81.5%), while only 10 were male (18.5%), of which 40 (74.1%) were tae kwon do practitioners and 14 (25.9%) were boxers. Of the total sample of 274 subjects, 228 (83.2%) were well informed about mouthguard usage. Of the total sample, 153 (55.8%) of the subjects used mouthguards, all of which were boil-and-bite type. The results of our study indicate that dentists and sports authorities in Turkey should promote the use of mouthguards in contact sports such as tae kwon do and boxing, which have a serious risk for dental and oral soft tissue trauma and tooth loss.