Accuracy and effectiveness of teledentistry: a systematic review of systematic reviews

Introduction The COVID-19 pandemic has urged healthcare systems to develop new ways to safely provide care. Telehealth has become a compelling alternative. Our purpose was to evaluate the accuracy and effectiveness of teledentistry for screening, diagnosis and therapeutic management of dental care in children and adults. Methods We conducted a systematic review (SR) of systematic reviews. Multiple databases, the grey literature and conference archives were searched. Eligible SRs included those reporting virtual screening, diagnostic investigations and therapeutic interventions. Two investigators independently reviewed abstracts, articles, critically appraised SRs and extracted the data. Results We identified 817 citations and included six SRs. The accepted SRs involved >7,000 participants, used primarily asynchronous communication for diagnostic/screening outcomes and used synchronous communication for treatment outcomes. SRs were of low quality and included 30 primary studies of our interest. Sensitivity and specificity for dental referrals and diagnostic treatment planning were higher than other index/reference tests, ranging from 80-88% and 73-95%, respectively. Treatment outcome measured patient compliance and professional supervision. Conclusion This SR provides the best existing evidence for clinical decision-making involving teledentistry. Current evidence supports teledentistry as an effective means for dental referrals, treatment planning and compliance and treatment viability. Asynchronous communication and the adoption of smartphones for image capturing are feasible and convenient for the implementation of teledentistry.