Oral health is fundamental to overall well-being, profoundly influences life, and impacts general health conditions. Teachers can play a key role in developing and executing oral-related preventive schemes. A cross-sectional survey was performed among 600 female private primary school teachers in Riyadh, KSA. Teachers were informed about the study by their school academic guidance. Informed consent was obtained from them before they answered the survey. The survey revealed that most (190) school teachers answered dental plaque is the staining of teeth (31.7%). One hundred sixty-eight (28%) teachers mentioned that dental plaque could cause dental caries, and 115 (19.2%) said that dental plaque leads to gum inflammation. The majority (482) of teachers (81.2%) visited the dentist every six months. In addition, teachers said that the Best way of cleaning teeth is 247 (41.2%) by brushing with toothpaste. Brushing prevents dental caries 531 (88.5%). Most school teachers brushed their teeth twice 60.5% (363) daily for one minute 38.2% (229). When enquired about brushing timing, most participants said they brushed their teeth before breakfast 383 (63.8%). The study results indicate poor oral health awareness among the primary educators in Riyadh, KSA; therefore, we need to improve oral health knowledge by improving the educational system program and providing demonstrations.