Pub Date : 2020-10-15DOI: 10.18231/J.JOOO.2020.025
Sneha Udhani, Amit Jain, Arpana Shekhawat, H. Joshi, Divya Singh
Background & Objectives: To evaluate the clinical utility of Tolonium chloride as a diagnostic aid amongst high-risk patients i.e. patients with tobacco smoking habit, to identify potential areas that might proceed into cancer and which are not otherwise identified during clinical examination and thus guide to select the biopsy site. Materials and Methods: A total of 180 individuals were selected for the study, Out of these 180 individuals, 95 individuals showed areas of stain retention in their oral mucosa and these 95 individuals constituted the study group. However, 62 individuals out of the study group were not willing to undergo biopsy. Only the remaining 32 individuals volunteered to participate in the study, from these volunteers’ biopsy specimens were obtained involving both stained and unstained area. Which were considered separately, making a total of 64 specimens. Results: The results of the present study showed sensitivity and specificity of 56.34% and 50.56% respectively for the Tolonium chloride mouth rinse to be used as a routine screening agent in detecting premalignant areas in otherwise apparent normal oral mucosa in high-risk group of people. In this study 0.403 P value shows insignificant correlation between the histopathological evaluation of the stained and the unstained areas. Conclusion: Tolonium chloride rinse is more sensitive as compared to the clinical examination alone, in detecting dysplastic changes in clinically apparent normal oral mucosa, among tobacco smokers. Tolonium chloride vital staining cannot be used to delineate the biopsy margins. Tolonium chloride might be used as a diagnostic tool in the biopsy site selection. The procedure cannot be performed on routine basis for high-risk group of people. Keywords: Tolonium chloride, Vital staining, Normal oral mucosa.
{"title":"Evaluation of tolonium chloride as an aid in diagnosis of dysplastic changes in oral mucosa among tobacco smokers","authors":"Sneha Udhani, Amit Jain, Arpana Shekhawat, H. Joshi, Divya Singh","doi":"10.18231/J.JOOO.2020.025","DOIUrl":"https://doi.org/10.18231/J.JOOO.2020.025","url":null,"abstract":"Background & Objectives: To evaluate the clinical utility of Tolonium chloride as a diagnostic aid\u0000amongst high-risk patients i.e. patients with tobacco smoking habit, to identify potential areas that might\u0000proceed into cancer and which are not otherwise identified during clinical examination and thus guide to\u0000select the biopsy site.\u0000Materials and Methods: A total of 180 individuals were selected for the study, Out of these 180\u0000individuals, 95 individuals showed areas of stain retention in their oral mucosa and these 95 individuals\u0000constituted the study group. However, 62 individuals out of the study group were not willing to undergo\u0000biopsy. Only the remaining 32 individuals volunteered to participate in the study, from these volunteers’\u0000biopsy specimens were obtained involving both stained and unstained area. Which were considered\u0000separately, making a total of 64 specimens.\u0000Results: The results of the present study showed sensitivity and specificity of 56.34% and 50.56%\u0000respectively for the Tolonium chloride mouth rinse to be used as a routine screening agent in detecting\u0000premalignant areas in otherwise apparent normal oral mucosa in high-risk group of people. In this study\u00000.403 P value shows insignificant correlation between the histopathological evaluation of the stained and\u0000the unstained areas.\u0000Conclusion: Tolonium chloride rinse is more sensitive as compared to the clinical examination alone, in\u0000detecting dysplastic changes in clinically apparent normal oral mucosa, among tobacco smokers. Tolonium\u0000chloride vital staining cannot be used to delineate the biopsy margins. Tolonium chloride might be used\u0000as a diagnostic tool in the biopsy site selection. The procedure cannot be performed on routine basis for\u0000high-risk group of people.\u0000\u0000Keywords: Tolonium chloride, Vital staining, Normal oral mucosa.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73915773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-10-15DOI: 10.18231/J.JOOO.2020.034
L. Bachani, Monika Singh, Anshul, A. Lingappa
Odontomas are the most common benign tumor of jaw constituting 22% of all odontogenic tumors. They are categorised under the benign calcified odontogenic tumors. It is considered to be hamartoma, that is, tumor like malformations. Odontomas are usually small resembling the size of the tooth. Large odontomas are rare. Complex odontomas are usually located in the posterior region of the mandible. In this case, complex odontoma was large with the size of approx. 5 cm and located in the posterior maxilla. The sole management depends upon the early diagnosis, histopathological examination and excision of these tissues. Keywords: Odontome, Complex odontome, Compound odontome.
{"title":"Complex odontome in posterior maxilla: A rare occurenc","authors":"L. Bachani, Monika Singh, Anshul, A. Lingappa","doi":"10.18231/J.JOOO.2020.034","DOIUrl":"https://doi.org/10.18231/J.JOOO.2020.034","url":null,"abstract":"Odontomas are the most common benign tumor of jaw constituting 22% of all odontogenic tumors. They\u0000are categorised under the benign calcified odontogenic tumors. It is considered to be hamartoma, that is,\u0000tumor like malformations. Odontomas are usually small resembling the size of the tooth. Large odontomas\u0000are rare. Complex odontomas are usually located in the posterior region of the mandible. In this case,\u0000complex odontoma was large with the size of approx. 5 cm and located in the posterior maxilla. The\u0000sole management depends upon the early diagnosis, histopathological examination and excision of these\u0000tissues.\u0000\u0000Keywords: Odontome, Complex odontome, Compound odontome.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77378926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-10-15DOI: 10.18231/J.JOOO.2020.032
Pinky Gupta, Pragati Upasham, Ajinkya Bangar
Osteosarcomas are highly malignant bone tumours characterised by the presence of malignant mesenchymal cells producing osteoid or immature bone. Though rapidly growing bones are commonly affected like metaphysis in the femur, rare cases of Osteosarcoma of jaw (JOS) too occur; with an incidence of approximately 0.7 per million. The diagnosis involves clinico-radiological and histological correlation. A 14-year old male presented with the chief complaints of swelling and pain in his lower jaw on left side for 15 days and was given a provisional diagnosis of neoplasia of left body of mandible on radiography which was confirmed as osteosarcoma in histopathology. The case presented here highlight the importance of histopathology in diagnosing the lesion. Considering its rarity we present the case and attempt to review the literature associated with this lesion. Osteosarcoma especially of jaw requires a high degree of suspicion and need to be diagnosed and treated promptly to prevent further complications as rapidly growing tumour could predispose to bony outgrowth, facial deformity, airway compromise and metastasis. Key message: Jaw osteosarcoma is a rare entity requiring clinico-radiological and histopathological corelation for early diagnosis.With a clinically distinct profile as compared to its extremity counterpart, early histomorpholgical diagnosis and management with surgery, chemotherapy and radiotherapy can lead to better outcome. Keywords: Bone malignant tumour, Histopathology, Jaw osteosarcoma, Mandible, Osteoblastic.
{"title":"Osteosarcoma of mandible in a teenager - A case report with review of literature","authors":"Pinky Gupta, Pragati Upasham, Ajinkya Bangar","doi":"10.18231/J.JOOO.2020.032","DOIUrl":"https://doi.org/10.18231/J.JOOO.2020.032","url":null,"abstract":"Osteosarcomas are highly malignant bone tumours characterised by the presence of malignant\u0000mesenchymal cells producing osteoid or immature bone. Though rapidly growing bones are commonly\u0000affected like metaphysis in the femur, rare cases of Osteosarcoma of jaw (JOS) too occur; with an incidence\u0000of approximately 0.7 per million. The diagnosis involves clinico-radiological and histological correlation.\u0000A 14-year old male presented with the chief complaints of swelling and pain in his lower jaw on left side\u0000for 15 days and was given a provisional diagnosis of neoplasia of left body of mandible on radiography\u0000which was confirmed as osteosarcoma in histopathology.\u0000The case presented here highlight the importance of histopathology in diagnosing the lesion. Considering\u0000its rarity we present the case and attempt to review the literature associated with this lesion. Osteosarcoma\u0000especially of jaw requires a high degree of suspicion and need to be diagnosed and treated promptly\u0000to prevent further complications as rapidly growing tumour could predispose to bony outgrowth, facial\u0000deformity, airway compromise and metastasis.\u0000Key message: Jaw osteosarcoma is a rare entity requiring clinico-radiological and histopathological corelation\u0000for early diagnosis.With a clinically distinct profile as compared to its extremity counterpart, early\u0000histomorpholgical diagnosis and management with surgery, chemotherapy and radiotherapy can lead to\u0000better outcome.\u0000\u0000Keywords: Bone malignant tumour, Histopathology, Jaw osteosarcoma, Mandible, Osteoblastic.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89667767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-30DOI: 10.14476/JOMP.2020.45.3.71
Su-Hyun Kim, J. Byun, Jae-Kwang Jung, Jae-Kap Choi
Received September 7, 2020 Revised September 14, 2020 Accepted September 15, 2020 While oral melanotic macule is regarded as the most frequent oral pigmented lesion without any harmful symptom, oral melanoma is a very rare and life-threatening disease among oral pigmented lesions. Oral melanotic macule has previously been described as benign, with no malignant potential. However, a few case reports have raised the question of malignant potential of oral melanotic macule. In this case report, we present a case of coexistence of oral melanotic macule and oral melanoma. A 66-year-old man with a chief complaint of black pigmentation on gingiva showed the lesion spread out on the right palatal gingiva, the right maxillary buccal gingiva and the right buccal mucosa, appearing to merge with one another. Biopsies were performed on the right palatal gingiva and the right buccal mucosa. While the lesion on the right palatal gingiva was diagnosed as an oral melanotic macule, the other lesion on the right buccal mucosa was diagnosed as an oral melanoma. The present case implied the possibility of malignant potential of oral melanotic macule. Therefore, oral melanotic macule needs careful periodic observation for early detection and prompt treatment of the transformed oral melanoma.
{"title":"Simultaneous Occurrence of Melanotic Macule and Melanoma in the Oral Cavity: A Case Report","authors":"Su-Hyun Kim, J. Byun, Jae-Kwang Jung, Jae-Kap Choi","doi":"10.14476/JOMP.2020.45.3.71","DOIUrl":"https://doi.org/10.14476/JOMP.2020.45.3.71","url":null,"abstract":"Received September 7, 2020 Revised September 14, 2020 Accepted September 15, 2020 While oral melanotic macule is regarded as the most frequent oral pigmented lesion without any harmful symptom, oral melanoma is a very rare and life-threatening disease among oral pigmented lesions. Oral melanotic macule has previously been described as benign, with no malignant potential. However, a few case reports have raised the question of malignant potential of oral melanotic macule. In this case report, we present a case of coexistence of oral melanotic macule and oral melanoma. A 66-year-old man with a chief complaint of black pigmentation on gingiva showed the lesion spread out on the right palatal gingiva, the right maxillary buccal gingiva and the right buccal mucosa, appearing to merge with one another. Biopsies were performed on the right palatal gingiva and the right buccal mucosa. While the lesion on the right palatal gingiva was diagnosed as an oral melanotic macule, the other lesion on the right buccal mucosa was diagnosed as an oral melanoma. The present case implied the possibility of malignant potential of oral melanotic macule. Therefore, oral melanotic macule needs careful periodic observation for early detection and prompt treatment of the transformed oral melanoma.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82346777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-30DOI: 10.14476/JOMP.2020.45.3.79
Seokjoon Jang, J. Byun, Jae-Kwang Jung, Jae-Kap Choi
Received September 7, 2020 Revised September 10, 2020 Accepted September 10, 2020 Tetanus is a fatal disease caused by the infection Clostridium tetani found in animal feces and soil. It is a vaccine-preventable disease and rarely occurs in developed countries. However, approximately 30 cases still occur annually in South Korea. Tetanus, commonly called lockjaw, cause contraction of the masseter muscles in the early stage, resulting in trismus as the first symptom. As it progresses, spasm extends to various muscles in the face, neck, shoulder, and back, leading to distorted facial expression, dysphagia, backward arching of the body, dyspnea, and even death. Early diagnosis of tetanus is critical because it can quickly become fatal if left untreated. We present a case of trismus caused by tetanus and emphasize the importance of early diagnosis of acute trismus.
{"title":"Case Report of Tetanus Patient Showing Trismus and Dysphagia as Early Symptoms","authors":"Seokjoon Jang, J. Byun, Jae-Kwang Jung, Jae-Kap Choi","doi":"10.14476/JOMP.2020.45.3.79","DOIUrl":"https://doi.org/10.14476/JOMP.2020.45.3.79","url":null,"abstract":"Received September 7, 2020 Revised September 10, 2020 Accepted September 10, 2020 Tetanus is a fatal disease caused by the infection Clostridium tetani found in animal feces and soil. It is a vaccine-preventable disease and rarely occurs in developed countries. However, approximately 30 cases still occur annually in South Korea. Tetanus, commonly called lockjaw, cause contraction of the masseter muscles in the early stage, resulting in trismus as the first symptom. As it progresses, spasm extends to various muscles in the face, neck, shoulder, and back, leading to distorted facial expression, dysphagia, backward arching of the body, dyspnea, and even death. Early diagnosis of tetanus is critical because it can quickly become fatal if left untreated. We present a case of trismus caused by tetanus and emphasize the importance of early diagnosis of acute trismus.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77728958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-30DOI: 10.14476/JOMP.2020.45.3.65
J. Ha, Won Jung, Kyung-Eun Lee, Bong-Jik Suh
Received August 19, 2020 Revised September 10, 2020 Accepted September 10, 2020 Myxomas in the orofacial regions are relatively uncommon tumors that occur in two different types: odontogenic myxomas and soft tissue myxomas. Odontogenic myxomas, derived from the mesenchymal cells such as papillae, dental follicles, or periodontal ligament, occur commonly in the maxilla and mandible. However, soft tissue myxomas in the oral cavity are rare and have been previously reported in only about 30 cases of unknown pathogenesis. The aim of this case report is to present a new case of oral soft tissue myxoma in a 37-year-old male patient who presented with a soft, exophytic round mass on the palate.
{"title":"A Soft Tissue Myxoma on the Palate: A Case Report","authors":"J. Ha, Won Jung, Kyung-Eun Lee, Bong-Jik Suh","doi":"10.14476/JOMP.2020.45.3.65","DOIUrl":"https://doi.org/10.14476/JOMP.2020.45.3.65","url":null,"abstract":"Received August 19, 2020 Revised September 10, 2020 Accepted September 10, 2020 Myxomas in the orofacial regions are relatively uncommon tumors that occur in two different types: odontogenic myxomas and soft tissue myxomas. Odontogenic myxomas, derived from the mesenchymal cells such as papillae, dental follicles, or periodontal ligament, occur commonly in the maxilla and mandible. However, soft tissue myxomas in the oral cavity are rare and have been previously reported in only about 30 cases of unknown pathogenesis. The aim of this case report is to present a new case of oral soft tissue myxoma in a 37-year-old male patient who presented with a soft, exophytic round mass on the palate.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82586224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-30DOI: 10.14476/JOMP.2020.45.3.56
H. Choi, Hye-Kyoung Kim, Mee-Eun Kim
Received August 18, 2020 Revised September 3, 2020 Accepted September 3, 2020 Purpose: Temporomandibular disorders (TMD) is a mosaic of clinical signs and symptoms that can be regarded as a set of phenotypes that are affected by various factors including pain sensitivity, pain disability, sleep and psychological functioning. The aims of this study were to evaluate association of pain experience, sleep quality and psychological distress with different phenotypes of TMD patients. Methods: This retrospective study included a cohort (n=1,858; 63.8% for female, mean age=34.9±15.9 years) of patients with TMD. A set of self-administered questionnaires concerning pain interference (Brief Pain Inventory), pain disability (Graded Chronic Pain Scale), sleep quality (Pittsburg Sleep Questionnaire Index), psychological distress (Symptom Checklist-90 revised), and pain catastrophizing (Pain Catastrophizing Scale) were administered to all participants at the first consultation. All TMD patients were classified into four groups including TMD with internal derangement without pain (TMD_ID, n=370), TMD with joint pain (TMD_J, n=571), TMD with muscle pain (TMD_M, n=541) and TMD with muscle-joint combined pain (TMD_MJ, n=376). Results: The female ratio was particularly high in the group with TMD_MJ (p=0.001). The patients with muscle pain and both muscle and joint pain had longer symptom duration (p=0.004) and presented significantly higher scores in pain experience (p<0.001), subjective sleep quality (p<0.001), pain catastrophizing (p<0.001) and psychological distress (p<0.05) except for paranoid-ideation than the groups with only joint problems. Conclusions: The results of this study highlight the importance of multi-dimensional approach that consider pain disability, sleep quality, and psychological functioning in the management of TMD with muscle component. This study would contribute to a better understanding of interaction between heterogeneous TMD and multiple risk factors in order to build tailored treatment based on different phenotypes.
{"title":"Quantitative and Qualitative Gradient of Pain Experience, Sleep Quality and Psychological Distress in Patients with Different Phenotypes of Temporomandibular Disorders","authors":"H. Choi, Hye-Kyoung Kim, Mee-Eun Kim","doi":"10.14476/JOMP.2020.45.3.56","DOIUrl":"https://doi.org/10.14476/JOMP.2020.45.3.56","url":null,"abstract":"Received August 18, 2020 Revised September 3, 2020 Accepted September 3, 2020 Purpose: Temporomandibular disorders (TMD) is a mosaic of clinical signs and symptoms that can be regarded as a set of phenotypes that are affected by various factors including pain sensitivity, pain disability, sleep and psychological functioning. The aims of this study were to evaluate association of pain experience, sleep quality and psychological distress with different phenotypes of TMD patients. Methods: This retrospective study included a cohort (n=1,858; 63.8% for female, mean age=34.9±15.9 years) of patients with TMD. A set of self-administered questionnaires concerning pain interference (Brief Pain Inventory), pain disability (Graded Chronic Pain Scale), sleep quality (Pittsburg Sleep Questionnaire Index), psychological distress (Symptom Checklist-90 revised), and pain catastrophizing (Pain Catastrophizing Scale) were administered to all participants at the first consultation. All TMD patients were classified into four groups including TMD with internal derangement without pain (TMD_ID, n=370), TMD with joint pain (TMD_J, n=571), TMD with muscle pain (TMD_M, n=541) and TMD with muscle-joint combined pain (TMD_MJ, n=376). Results: The female ratio was particularly high in the group with TMD_MJ (p=0.001). The patients with muscle pain and both muscle and joint pain had longer symptom duration (p=0.004) and presented significantly higher scores in pain experience (p<0.001), subjective sleep quality (p<0.001), pain catastrophizing (p<0.001) and psychological distress (p<0.05) except for paranoid-ideation than the groups with only joint problems. Conclusions: The results of this study highlight the importance of multi-dimensional approach that consider pain disability, sleep quality, and psychological functioning in the management of TMD with muscle component. This study would contribute to a better understanding of interaction between heterogeneous TMD and multiple risk factors in order to build tailored treatment based on different phenotypes.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83131902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-30DOI: 10.14476/JOMP.2020.45.3.49
Hyo-Jung Jung, Yong-Guang Min, Hyo-Jung Kim, Joo-Young Lee, Jong-hoon Choi, Baek-Il Kim, Hyung-Joon Ahn
Received June 10, 2020 Revised June 18, 2020 Accepted June 19, 2020 Purpose: This study investigated the association between the objective indicator of masticatory function assessment and the masseter muscle thickness (MMT) using ultrasound imaging. Methods: A total of 99 subjects (males: 24, females: 75, mean age: 76) were analyzed. The maximum bite force (MBF) was measured with a pressure-sensitive sheet and an image scanner. The mixing ability index (MAI) was calculated by image analysis after asking the subjects to chew a wax specimen. The MMT during rest and clenching were obtained with a diagnostic ultrasound system, and the difference in MMT during rest and MMT during clenching was defined as the difference in masseter muscle thickness (DMMT). Multiple regression analysis was performed to determine the independent variables affecting MBF and MAI. Results: The MBF showed correlation with the number of remaining teeth (β=0.346, p=0.002) and DMMT (β=0.251, p=0.011). The MAI correlated with only the number of remaining teeth (β=0.476, p<0.001). Conclusions: The DMMT reflects the state of masseter muscle contraction, and can be used as a predictor as well as the number of teeth when assessing masticatory function.
{"title":"The Association Between Masticatory Function Assessment and Masseter Muscle Thickness in the Elderly","authors":"Hyo-Jung Jung, Yong-Guang Min, Hyo-Jung Kim, Joo-Young Lee, Jong-hoon Choi, Baek-Il Kim, Hyung-Joon Ahn","doi":"10.14476/JOMP.2020.45.3.49","DOIUrl":"https://doi.org/10.14476/JOMP.2020.45.3.49","url":null,"abstract":"Received June 10, 2020 Revised June 18, 2020 Accepted June 19, 2020 Purpose: This study investigated the association between the objective indicator of masticatory function assessment and the masseter muscle thickness (MMT) using ultrasound imaging. Methods: A total of 99 subjects (males: 24, females: 75, mean age: 76) were analyzed. The maximum bite force (MBF) was measured with a pressure-sensitive sheet and an image scanner. The mixing ability index (MAI) was calculated by image analysis after asking the subjects to chew a wax specimen. The MMT during rest and clenching were obtained with a diagnostic ultrasound system, and the difference in MMT during rest and MMT during clenching was defined as the difference in masseter muscle thickness (DMMT). Multiple regression analysis was performed to determine the independent variables affecting MBF and MAI. Results: The MBF showed correlation with the number of remaining teeth (β=0.346, p=0.002) and DMMT (β=0.251, p=0.011). The MAI correlated with only the number of remaining teeth (β=0.476, p<0.001). Conclusions: The DMMT reflects the state of masseter muscle contraction, and can be used as a predictor as well as the number of teeth when assessing masticatory function.","PeriodicalId":16606,"journal":{"name":"Journal of oral medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89131135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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