Oral Hypofunction Research Articles

Potential of Panoramic Radiography as a Screening Method for Oral Hypofunction in the Evaluation of Hyoid Bone Position

Potential of Panoramic Radiography as a Screening Method for Oral Hypofunction in the Evaluation of Hyoid Bone Position

Oral hypofunction in the older population: Position paper of the Japanese Society of Gerodontology in 2016.

There is growing international interest in identifying the effects of ageing on oral health and on appropriate strategies for managing oral disorders. The Japanese Society of Gerodontology (JSG), as the official representative of researchers and clinicians interested in geriatric dentistry in Japan, makes several recommendations on the concept of "oral hypofunction." This study proposes diagnostic criteria and management strategies to reduce the risk of oral hypofunction among older people. We define oral hypofunction as a presentation of 7 oral signs or symptoms: oral uncleanness; oral dryness; decline in occlusal force; decline in motor function of tongue and lips; decline in tongue pressure; decline in chewing function; and decline in swallowing function.The criteria of each symptom were determined based on the data of previous studies, and oral hypofunction was diagnosed if the criteria for 3 or more signs or symptoms were met. We recommend that more evidence should be gathered from clinical studies and trials to clarify our diagnostic criteria and management strategies.

Study on the Prevalence Rate of Oral Hypofunction in the Elderly Facility User

Study on the Prevalence Rate of Oral Hypofunction in the Elderly Facility User

Prevalence of Oral Hypofunction in Patients of a Dental Clinic

Prevalence of Oral Hypofunction in Patients of a Dental Clinic

Evaluation of swallowing ability using swallowing sounds in maxillectomy patients.

Maxillectomy for oral tumours often results in debilitating oral hypofunction, which markedly decreases quality of life. Dysphagia, in particular, is one of the most serious problems following maxillectomy. This study used swallowing sounds as a simple evaluation method to evaluate swallowing ability in maxillectomy patients with and without their obturator prosthesis placed. Twenty-seven maxillectomy patients (15 men, 12 women; mean age 66.0±12.1years) and 30 healthy controls (14 men, 16 women; mean age 44.9±21.3years) were recruited for this study. Participants were asked to swallow 4mL of water, and swallowing sounds were recorded using a throat microphone. Duration of the acoustic signal and duration of peak intensity (DPI) were measured. Duration of peak intensity was significantly longer in maxillectomy patients without their obturator than with it (P<.05) and was significantly longer in maxillectomy patients without their obturator than in healthy controls (P<.025 after Bonferroni correction). With the obturator placed, DPI was significantly longer in maxillectomy patients who had undergone soft palate resection than in those who had not (P<.05). These results suggest swallowing ability in maxillectomy patients could be improved by wearing an obturator prosthesis, particularly during the oral stage. However, it is difficult to improve the oral stage of swallowing in patients who have undergone soft palate resection even with obturator placement.

Oral hyperpigmentation and adrenocortical hypofunction in a patient with acquired immunodeficiency syndrome

Oral hyperpigmentation and adrenocortical hypofunction in a patient with acquired immunodeficiency syndrome