<p>In order to understand the impacts of extreme heat on oral health and dentistry this study has been undertaken. In the era of global warming and climate change extreme heat events (EHEs) are increasing across the world. The rising frequency, intensity, and duration of EHEs over India poses new hurdles for oral health and dentistry. In this review, the impacts of extreme heat (EH) on oral health and dentistry in India have been highlighted. Heat-induced dehydration leads to reduced salivary flow, which increases the risk of dental caries, periodontal disease, oral mucosal lesions, and infections. Elevated thirst during EHEs often drives higher consumption of sugar-sweetened beverages (SSBs), contributing to caries, erosion, tooth loss, and oral cancers. EH degrades restorative and impression materials, compromises the stability of acrylics and causes warping and or reduced accuracy and hence disrupts dental practices. Dental equipment such as scanners, X-rays autoclaves, and refrigeration units are vulnerable to overheating, leading to inefficiency, compromised infection control, and increased operational costs. Moreover, during EHEs outpatient departments (OPDs), dental camps, etc. in India often experience less patient turnout, staff fatigue, and heat-related illness, particularly in outdoor settings. Collectively, EH poses a growing threat to oral healthcare delivery in India, necessitating climate-resilient infrastructure and adaptive public oral health strategies.</p>