Bitewing radiograph is a very useful intraoral radiograph, especially to detect incipient proximal caries.
Bitewing radiograph can be taken by using film sizes number Zero or One for younger children and Number two for older children.
The coronal portion of both the maxillary and mandibular teeth of the required area can be-visualized on the film.
- Detection of interproximal caries with respect to depth and relationship to pulp.
- Detection in incipient interproximal caries
- Observation of boundaries of the pulp chamber and the height of the pulp horns
- Observation of primary resorption pattern
- Observation of location and position of retained primary roots
- Observation of relationship of opposing teeth
- Observation of location and position of permanent tooth bud and its relationship to the primary root.
Bitewing radiograph can be taken with paper holders to which a tab is attached. The central x-ray beam is directed between the contact points of the teeth.
Similar to Bitewing radiograph, Occlusal radiographs are used in the evaluation of the entire maxillary arch or mandibular arch.
Occlusal radiograph are indicated in the localization technique (for example to determine the buccolingual position of impacted teeth), to evaluate cortical plate expansion, to evaluate fraction displacement, to evaluate the maxillary sinus or submandibular salivary gland calculi.
A larger film is used to cover the larger area in one film.