
The labelled structures are (excluding the correct side):
mandibular canal
coronoid process
condylar neck
mandibular notch
condyle
pterygomandibular raphe
articular eminence of temporal bone
body
temporomandibular joint
mental foramen
ramus
maxillary sinus
pterygomaxillary fissure
bony nasal septum
nasal cavity
zygomatic arch
mandibular foramen
mental tubercle
greater cornu of the hyoid bone
anterior nasal spine
styloid process of the temporal bone
body of the hyoid bone
base of tongue
lobule of the pinna
epiglottis
soft palate
vallecula
hard palate
oroharynx
floor of maxillary antrum
cervical verterbal body
OPG bite block

The same normal OPG without labels for reference.
Case Discussion
The labelled structures are (excluding the correct side):
- mandibular canal
- coronoid process
- condylar neck
- mandibular notch
- condyle
- pterygomandibular raphe
- articular eminence of temporal bone
- body
- temporomandibular joint
- mental foramen
- ramus
- sphenoid sinus
- pterygomaxillary fissure
- bony nasal septum
- nasal cavity
- zygomatic arch
- mandibular foramen
- mental tubercle
- greater cornu of the hyoid bone
- anterior nasal spine
- styloid process of the temporal bone
- body of the hyoid bone
- base of tongue
- lobule of the pinna
- epiglottis
- soft palate
- vallecula
- hard palate
- oroharynx
- floor of maxillary antrum
- cervical verterbal body
- OPG bite block