Abstract
Patient: The patient was a 41-year-old female. The chief complaints were swelling of mandibular molar area, mastication pain and
occlusal pain. She had moderate to severe periodontitis. Anterior guidance was absent due to open bite of the anterior teeth,
and there was localized periodontal progression of the posterior molars. After thorough periodontal treatment, implant therapy,
and orthodontic treatment, the treatment result was stable.
Discussion: There is no evidence that excessive occlusal force, mainly due to bruxism, is a modifying (exacerbating) factor in the
progression of periodontitis. However, there are many clinical cases in which this involvement is suspected. In order to clarify the
involvement of force, it is necessary to screen for the risk of force mainly through occlusal examination. If the results show a high
risk of force, force control including occlusal treatment is necessary.
Result: For patients with moderate to severe periodontal disease, force control based on force risk diagnosis as well as inflamma-
tion control is important.
