How many films are typically included in a full-mouth survey that includes bitewings?

A full-mouth survey typically comprises a series of periapical radiographs, supplemented by bitewing films to provide a comprehensive view of the dental structures. In dental practices, a standard full-mouth series usually includes 14 periapical films and 4 bitewing films, totaling 18 films.

However, many practitioners utilize additional films to enhance diagnostic accuracy, which can lead to a count of 20 when considering variations in technique or patient needs. These additional films could encompass supplementary periapical or occlusal views, aiming to give a detailed overview of the patient’s oral health.

The choice of 20 films reflects common practice, incorporating enough detail to facilitate thorough assessment. It's crucial to understand that the total can vary depending on specific requirements and radiographic techniques adopted by different dental professionals or institutions.

Thus, the answer indicating 20 films is indicative of a standard approach that allows dentists to gain insights into various dental conditions while ensuring they adhere to safety and diagnostic principles.