We previously reported the relationship between anxiety tendencies （STAI） and sleep quality （PSQI） in dental hygiene school students during clinical observations. However, there has been limited detailed investigation into the relationship between STAI, which is part of an anxiety tendency, and Epworth Sleepiness Scale （ESS） and Athens Insomnia Scale （AIS）, which are part of sleep surveys. Therefore, we conducted this study and report our findings herein. Our study included 105 female healthy students with an average age of 20.1 years （ranging from 18 to 45 years old）. Each participant was tested before and after clinical practice for STAI, and before practice for ESS and AIS. The reference values were set at 48.6 points for trait anxiety, 45.9 points for state anxiety, 11 points for ESS, and 6 points for AIS. We found a correlation coefficient of 0.49 between trait anxiety and state anxiety before practice, but no correlation was observed after practice. Notably, the high ESS and AIS group （n＝12） exhibited a strong positive correlation of 0.81 between trait anxiety and state anxiety before practice （P＜0.05）. Therefore, to mitigate state anxiety during clinical observations, it is advisable to proactively identify high ESS and AIS groups and provide sleep education.

View full abstract

Glandular odontogenic cysts （GOC）, which account for 0.2％ of all odontogenic cysts, are recognized as rare and uncommon developmental jawbone cysts with an aggressive behavior and high recurrence rate. We report a case of GOC in a man in his 50s. He presented with a painful swelling in the mandibular anterior region and a panoramic radiograph revealed a large solitary well-defined multilocular radiolucency extending from the right first molar to the left second premolar of the mandible. On histopathological examination of the biopsy tissue, the patient was diagnosed with GOC in the mandibular body, which was treated by segmental mandibulectomy and immediate reconstruction with a free vascularized fibular graft. Ten years after surgery, no findings associated with recurrence were noted.

View full abstract

Maxillary antrolith is a rare disease of the maxillary sinus, which is formed by the deposition of mineral salts around an endogenous or exogenous foreign body as a core. We report a case of a maxillary antrolith that originated from a core that developed in the maxillary sinus.
The patient was a woman in her 30s. Imaging examination revealed a round radiopacity in the maxillary sinus with hard tissue-like radiopacities that were not contiguous with adjacent dental roots, and the root was curved to avoid the radiopacity. The patient underwent excisional surgery under general anesthesia. A white mass with bone-like hardness was observed in the maxillary sinus. The lesion was clearly circumscribed from the surrounding tissue. Histopathological findings showed acidophilic hard tissue at low magnification. A round shaped substance was seen, with hard tissue surrounding the substance as a core （5-10μm） at high magnification. Although cholesterol clefts, which were seen when cells were damaged, and hard tissue were formed around the core-like material, no cell proliferation was observed, and foreign body reactions were scarce. It was thought that hard tissue was added around these materials, forming a mass in the maxillary sinus.

View full abstract

We report a case of orofacial granulomatosis （OFG） that was treated with dietary therapy. The patient was a 16-year-old male who came to our hospital with a chief complaint of buccal mucosa pain when opening the mouth. A biopsy of the buccal mucosa was performed and was histopathologically diagnosed as granuloma without necrosis. Systemic examination revealed no findings suggestive of Crohn’s disease or sarcoidosis. Based on the clinical and pathological findings, OFG was diagnosed and the patient was started on a 12-week diet. Two days later, the pain improved and the lips and oral mucosa normalized over time.

View full abstract