What does it mean for teeth to meet?
When you close your mouth and bite together, surfaces of the upper and lower teeth make contact. Your bite describes that relationship, not just the appearance of the front teeth when you smile. The word may refer to tooth alignment and to the surfaces that touch.
A bite assessment involves more than one photograph. A dentist examines the contacts and how they relate to function and any symptoms. You do not need technical vocabulary to explain that something feels different.
Sources: MedlinePlus: Malocclusion of Teeth
The bite, lower jaw, and jaw joints are different
Pain around the jaw does not automatically mean the bite caused it. An examination is needed to understand the symptoms before drawing treatment conclusions.
Scroll the table horizontally on smaller screens.
| Term | Meaning |
|---|---|
| Bite or occlusion | The relationship between teeth when they meet. |
| Mandible | The lower jawbone. |
| Temporomandibular joints | The joints connecting the lower jaw to the skull. |
| Night guard or splint | A device intended for a particular dental purpose. |
Sources: NIDCR: Temporomandibular Disorders
Why does the bite matter during oral appliance therapy?
A mandibular advancement appliance rests on the teeth and holds the lower jaw forward during sleep. Treatment can change tooth contacts and the bite over time. Follow-up therefore includes the mouth and jaw even though the treatment goal involves breathing.
Recording how the teeth meet before treatment gives the dentist a baseline for later comparison. The clinician assesses the significance of a change and whether the treatment plan needs to be adjusted.
Sources: ADA: Obstructive Sleep Apnea · AADSM updated standards, April 2025
Describe the change you actually notice
For example: “One side touches first in the morning, then it feels normal later.” Another useful description is: “The change is still there when I eat dinner.” These examples help communicate a symptom; they are not diagnostic tests.
Note when the change appears, how long it lasts, and whether you also have pain or difficulty chewing. You do not need to move your jaw forcefully or change the appliance to investigate it yourself.
Questions for your dentist
- Have the tooth contacts changed, or does the bite simply feel different?
- What earlier records can you compare with?
- What should I watch for before the next visit?
- Who should I contact if the change persists or becomes uncomfortable?
Sources: AADSM updated standards, April 2025
EXPLORE THE EVIDENCE
Sources and further reading
These sources support the explanations. General information does not replace an individual healthcare assessment.
- MedlinePlus: Malocclusion of Teeth Definition of occlusion and clinical assessment of tooth contacts.Source checked October 28, 2026
- NIDCR: Temporomandibular Disorders Jaw joint and muscle disorders; limited evidence for splints for TMD pain; avoid permanently bite-changing appliances; stop and contact clinician if the splint causes pain.Source checked October 28, 2026
- ADA: Obstructive Sleep Apnea Roles of medical providers and dentists, oral appliances, and dental adverse effects.Source checked October 28, 2026
- AADSM updated standards, April 2025 The 2025 standards for medical and dental collaboration, in-person dental assessment, appliance fitting and ongoing monitoring.Source checked October 28, 2026