What can result from inadequate fitting of dental appliances?

Inadequate fitting of dental appliances can lead to discomfort for the patient, making option C the most appropriate choice. When dental appliances, such as dentures, retainers, or orthodontic devices, do not fit properly, they can cause soreness, irritation, or pain in the oral tissues. This discomfort can discourage patients from wearing the appliances as prescribed, potentially hindering treatment effectiveness and oral health outcomes.

Additionally, an improper fit can interfere with the functional aspects of the appliance, such as biting and chewing, which further contributes to the overall discomfort experienced by the individual. Recognizing the importance of proper fitting is essential in ensuring that dental appliances serve their intended purpose without causing undue stress or harm to the patient's oral cavity.

While increased jaw alignment and aesthetic issues are considerations that may relate to dental treatments, the immediate and easily observable result of poorly fitting dental appliances is primarily comfort-related. Therefore, the focus on ill-fitting comfort aligns perfectly with the direct consequences of inadequate fitting.