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Lin CS, Chen YC, Chao LJ, Kao WC, Chen TC. Age-related difference in oral adaptation to masticatory perturbation. Arch Oral Biol 2024; 161:105914. [PMID: 38447352 DOI: 10.1016/j.archoralbio.2024.105914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/26/2023] [Accepted: 02/15/2024] [Indexed: 03/08/2024]
Abstract
OBJECTIVES Mastication can be influenced by intraoral perturbation (e.g., hard food). We developed the masticatory perturbation task (MPT) to assess the perturbation effect during mastication and quantify the degree of adaptation to masticatory perturbation in younger and older adults. DESIGN Thirty-eight younger and 38 older participants completed the MPT, which consisted of three trials assessing masticatory performance (MP) without perturbation (i.e., the baseline condition) and three trials assessing MP with perturbation (i.e., the perturbation condition). Perturbation was implemented by concurrently chewing test food on the preferred side and a drinking straw on the nonpreferred side. We estimated the perturbation effect as the ΔMP between the baseline and perturbation conditions and the adaptation effect as the ΔMP between the third and the first trials for both age groups. RESULTS We found a significant perturbation effect, i.e., a lower MP in the perturbation condition than in the baseline condition, and an adaptation effect, i.e., a higher MP in the third trial than the first trial, in both groups. Moreover, the older group showed a lower degree of adaptation than the younger group. CONCLUSION The masticatory perturbation task revealed the perturbation effect during mastication and the adaptation to masticatory perturbation. The results revealed an association between age and masticatory adaptation.
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Affiliation(s)
- Chia-Shu Lin
- Department of Dentistry, National Yang Ming Chiao Tung University, Taiwan; Institute of Brain Science, National Yang Ming Chiao Tung University, Taiwan; Brain Research Center, National Yang Ming Chiao Tung University, Taiwan; Oral Medicine Innovation Center, National Yang Ming Chiao Tung University, Taiwan.
| | - Yi-Chen Chen
- Department of Dentistry, National Yang Ming Chiao Tung University, Taiwan
| | - Li-Jung Chao
- Department of Dentistry, National Yang Ming Chiao Tung University, Taiwan
| | - Wei-Chieh Kao
- Department of Dentistry, National Yang Ming Chiao Tung University, Taiwan
| | - Ta-Chung Chen
- Division of Prosthodontics, Department of Stomatology, Taipei Veterans General Hospital, Taiwan
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Seto E, Kosaka T, Hatta K, Mameno T, Mihara Y, Fushida S, Murotani Y, Maeda E, Akema S, Takahashi T, Wada M, Gondo Y, Masui Y, Ishizaki T, Kamide K, Kabayama M, Ikebe K. Factors related to subjective evaluation of difficulty in chewing among community-dwelling older adults. Geriatr Gerontol Int 2024; 24 Suppl 1:327-333. [PMID: 38114072 DOI: 10.1111/ggi.14783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
AIM Awareness of difficulty chewing may limit the diversity of food intake in older adults. However, few studies have clarified which factors are related to subjective difficulty in chewing. The aim was to identify factors related to subjective difficulty in chewing in 70- and 80-year-old Japanese older adults. METHODS A total of 1680 participants (792 men, 888 women) were surveyed. Difficulty in chewing was assessed with questionnaires regarding food intake, such as rice, apples, beef, and hard rice crackers. The participants were classified into two groups, the "with difficulty" group (participants who answered "cannot eat," "can eat with difficulty," and "can eat if small") and the "without difficulty" group (participants who answered "can eat without problems"), according to their answers to questionnaires for each food. A logistic regression analysis with subjective difficulty in chewing as the dependent variable was performed for each food. RESULTS Subjective difficulty in chewing was associated with age, occlusal force, and depression for rice; age, number of remaining teeth, occlusal force, and depression for apples; number of remaining teeth, occlusal force, and depression for beef; and number of remaining teeth and occlusal force for hard rice crackers. CONCLUSIONS Age, number of remaining teeth, and occlusal force, as well as depression, might be related to subjective evaluation of difficulty chewing in community-dwelling Japanese older adults. Geriatr Gerontol Int 2024; 24: 327-333.
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Affiliation(s)
- Eri Seto
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Takayuki Kosaka
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Kodai Hatta
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Tomoaki Mameno
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yusuke Mihara
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Shuri Fushida
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yuki Murotani
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Erisa Maeda
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Suzuna Akema
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Toshihito Takahashi
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Masahiro Wada
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yasuyuki Gondo
- Department of Clinical Thanatology and Geriatric Behavioral Science, Osaka University Graduate School of Human Sciences, Osaka, Japan
| | - Yukie Masui
- Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Tatsuro Ishizaki
- Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Kei Kamide
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mai Kabayama
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazunori Ikebe
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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Santiago O, Cruz RC, da Cunha THR, Lacerda RG, Ferreira MVL, Huebner R. Impact of pivoting bite tip on bite force measurement tests. Clin Oral Investig 2023:10.1007/s00784-023-04901-x. [PMID: 36781476 DOI: 10.1007/s00784-023-04901-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 02/03/2023] [Indexed: 02/15/2023]
Abstract
OBJECTIVE Present a gnathodynamometer design that increases patient comfort, precision, and/or ease for the operator during bite force tests. MATERIALS AND METHODS A bite tip capable of pivoting 180° was tested on senior dental students in a double-blind trial. The tests were performed in teeth 11 and 16 with the bite tip on the long axis of the clamp and at an angle of 90° to the clamp. The sample was composed of 24 students, 13 males and 11 females, randomly divided into two groups: the operator group (OP), which was composed of 12 students, 7 males and 5 females, and the test group (TI), which was composed of 12 students, 6 males and 6 females. The operator and participants were asked to evaluate comfort and precision/ease in positioning the bite tip by attributing scores from 0 (total discomfort) to 10 (total comfort) during the test. RESULTS No difference was noted in tooth 11 (P > 0.05). In tooth 16, there was a statistically significant improvement (P < 0.01) for the participants tested and the operator using the pivoting bite tip. CONCLUSIONS The pivoting bite tip showed no difference in the comfort of the participants and operator precision when testing incisors; however, the tip showed a difference for both conditions in the molar region. The gnathodynamometer geometry showed good results in participant comfort and operator precision when used in bite force tests of the incisors and molars. Further investigations are needed to confirm whether these improvements influence the mean value and maximum bite force measurement. CLINICAL RELEVANCE Bite force measurement is a method for obtaining important data to check the functional conditions of the stomatognathic system. With the aging of the world population, it has become important to check the quality of life during aging. The pivoting bite tip improves the comfort and precision of bite tests for the participants tested and for the operator, respectively.
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Affiliation(s)
- Orlando Santiago
- Graduate Program in Mechanical Engineering, Minas Gerais Federal University (UFMG), Avenida Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil.
| | - Rosana C Cruz
- Graduate Program in Mechanical Engineering, Minas Gerais Federal University (UFMG), Avenida Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | | | - Rodrigo G Lacerda
- Department of Physics, Institute of Exact Sciences (ICEX), Minas Gerais Federal University (UFMG), Belo Horizonte, MG, Brazil
| | - Marcus Vinícius L Ferreira
- Department of Restorative Dentistry, Faculty of Dentistry, Minas Gerais Federal University (UFMG), Belo Horizonte, MG, Brazil
| | - Rudolf Huebner
- Graduate Program in Mechanical Engineering, Minas Gerais Federal University (UFMG), Avenida Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
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Schimmel M, Rachais E, Al‐Haj Husain N, Müller F, Srinivasan M, Abou‐Ayash S. Assessing masticatory performance with a colour-mixing ability test using smartphone camera images. J Oral Rehabil 2022; 49:961-969. [PMID: 35730250 PMCID: PMC9545160 DOI: 10.1111/joor.13352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/08/2022] [Accepted: 06/16/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND Colour-mixing ability tests are frequently used to assess masticatory performance, but the image acquisition process may be cumbersome and technique sensitive. OBJECTIVES To evaluate the reliability of smartphone camera images in assessing masticatory performance using a colour-mixing ability test. METHODS Participants were recruited into three groups of dental state (n = 20 each): fully dentate, removable partial denture wearers and complete denture wearers. After performing a colour-mixing ability test, images of the gum specimens (Hue-Check Gum©) were captured with two smartphones and compared with the images obtained from a flatbed scanner by two examiners. The images were analysed with a subjective- (SA) and an opto-electronical assessment (VoH). Inter- and intra-rater reliability were tested. ANOVA models with repeated measures were used for statistical analysis (⍺ = .05). RESULTS All three image acquisition techniques were able to distinguish masticatory performance between different dental states. For SA, inter-rater reliability was fair to substantial and intra-rater reliability was substantial to almost perfect. For VoH, inter-rater reliability with the smartphones was at times different between two examiners, but the intra-rater assessment was reliable. The opto-electronic analysis with smartphone images underestimated the masticatory performance significantly when compared to the flatbed scanner analysis. Seven-day ageing of the specimens did not significantly affect the results. CONCLUSIONS The assessment of masticatory performance with the Hue-Check Gum© is a reliable method. The use of smartphones may occasionally underestimate masticatory performance; image acquisition with a flatbed scanner remains the gold standard. A centralised analysis of the photographed wafer may foster the reliability of the diagnosis.
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Affiliation(s)
- Martin Schimmel
- Department of Reconstructive Dentistry and Gerodontology, School of Dental MedicineUniversity of BernBernSwitzerland
- Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental MedicineUniversity of GenevaGenevaSwitzerland
| | - Elias Rachais
- Department of Reconstructive Dentistry and Gerodontology, School of Dental MedicineUniversity of BernBernSwitzerland
| | - Nadin Al‐Haj Husain
- Department of Reconstructive Dentistry and Gerodontology, School of Dental MedicineUniversity of BernBernSwitzerland
| | - Frauke Müller
- Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental MedicineUniversity of GenevaGenevaSwitzerland
| | - Murali Srinivasan
- Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental MedicineUniversity of GenevaGenevaSwitzerland
- Clinic of General‐ Special Care‐ and Geriatric DentistryCenter of Dental MedicineUniversity of ZurichZürichSwitzerland
| | - Samir Abou‐Ayash
- Department of Reconstructive Dentistry and Gerodontology, School of Dental MedicineUniversity of BernBernSwitzerland
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Pitak-Arnnop P, Witohendro LK, Tangmanee C, Subbalekha K, Sirintawat N, Auychai P, Meningaud JP, Neff A. Benefit-risk appraisal of lip-split mandibular "swing" vs. transoral approaches to posterior oral/oropharyngeal carcinomas using number needed to treat, to harm, and likelihood to be helped or harmed. Surg Oncol 2022; 44:101837. [PMID: 35985085 DOI: 10.1016/j.suronc.2022.101837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/18/2022] [Accepted: 08/08/2022] [Indexed: 01/30/2023]
Abstract
PURPOSE s: To evaluate benefit-risk profiles of lip-split mandibular "swing" vs. transoral approaches (LS-MSA; TOA) to the American Joint Committee on Cancer (AJCC) stage I-III posterior oral/oropharyngeal carcinomas (PO/OPC). METHODS Using a retrospective double-cohort study design, we enrolled stage I-III PO/OPC patients treated in two German medical centers during a 4-year interval. The predictor variable was surgical technique (LS-MSA/TOA), and main outcomes were complete resection with R0 margins (CR-R0), 5-year overall survival and recurrence (OS5; R5), and adverse events (AEs). Descriptive and bivariate statistics were computed with α = 95%. Benefit-risk profiles were investigated using number needed to treat (NNT), to harm (NNH), and likelihood to be helped or harmed (LLH). RESULTS At 5-year follow-ups of 202 subjects, LS-MSA caused significantly better CR-R0 (P = 0.001; NNT: 4) and fewer R5 (P = 0.003; NNT: 5), but more risks of wound dehiscence ([WD]; P = 0.01; NNH = 8), and orocutaneous fistula ([OCF]; P = 0.01; NNH: 10). LLH calculations demonstrated that LS-MSA was 2 and 1.6 times more likely to result in CR-R0 and fewer R5 than an incident of WD. There was no significant difference in OS5, postoperative infections (within 30 postoperative days) and AE domains according to the University of Washington Quality of Life questionnaire version 4 (UW-QoLv4) between the surgical approach groups. CONCLUSIONS Compared to TOA, LS-MSA is an efficacious and tolerable intervention for inspecting and eradicating stage I-III PO/OPCs, and reducing recurrences at 5-year follow-ups. Post-LS-MSA WD and OCF require meticulous concerns and more investigations.
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Affiliation(s)
- Poramate Pitak-Arnnop
- Department of Oral and Craniomaxillofacial Plastic Surgery, UKGM GmbH, University Hospital Marburg, Faculty of Medicine, Philipps-University of Marburg, Marburg, Germany.
| | | | - Chatpong Tangmanee
- Department of Statistics, Chulalongkorn University Business School, Bangkok, Thailand
| | - Keskanya Subbalekha
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Nattapong Sirintawat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Prim Auychai
- Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Jean-Paul Meningaud
- Department of Plastic, Reconstructive, Esthetic and Maxillofacial Surgery, Henri Mondor University Hospital, AP-HP, Faculty of Medicine, University Paris-Est Créteil Val de Marne (Paris XII), Créteil, France
| | - Andreas Neff
- Department of Oral and Craniomaxillofacial Plastic Surgery, UKGM GmbH, University Hospital Marburg, Faculty of Medicine, Philipps-University of Marburg, Marburg, Germany
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Hong SW, Kang JH. Relationship between skeletal bone mineral density and subjective masticatory difficulty. BMC Oral Health 2022; 22:136. [PMID: 35448990 PMCID: PMC9027039 DOI: 10.1186/s12903-022-02172-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/13/2022] [Indexed: 11/10/2022] Open
Abstract
Background Masticatory ability is an essential factor for sustaining quality of life and social and systemic well-being, particularly in elderly. This study aimed to reveal the association between subjective masticatory difficulty and skeletal bone mineral density (BMD). Methods Data from the Korean National Health and Nutrition Examination Survey, which was conducted from 2008 to 2011 were analyzed. This study included 13,092 Koreans (5656 males, 7436 females) over 50 years of age. Masticatory difficulty was evaluated based on a self-reported questionnaire. Areal BMD of the total hip, femoral neck, and lumbar spine as well as lean body mass were determined using dual-energy X-ray absorptiometry. Data about the sociodemographic characteristics, physical activity, number of teeth present, sum of decayed, missing, and filled permanent teeth (DMFT) index and Community Periodontal Index (CPI) were collected. Multivariate logistic regression analysis was conducted to analyze associations between subjective masticatory difficulty and BMD, adjusting for the confounding covariates. Results Significant differences were observed in the areal BMD of the total hip, femoral neck, and lumbar spine as well as lean body mass accordance with the presence of subjective masticatory difficulty in both males and females. The number of teeth, DMFT, and CPI score did not show significant differences based on the presence of self-reported satisfaction of chewing performance in both males and females. Results from multivariate logistic regression demonstrated that the subjective masticatory difficulty showed significant interactions with skeletal BMD and the associations between masticatory satisfaction and BMD of the total hip and femoral neck were more prominent in females compared to those in males. Conclusions The skeletal BMD, particularly areal BMD of the femoral neck was significantly associated with subjective masticatory difficulty in elderly, especially in elder females.
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Affiliation(s)
- Seok Woo Hong
- Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29, Saemunan-ro, Jongno-gu, Seoul, 03181, Republic of Korea
| | - Jeong-Hyun Kang
- Clinic of Oral Medicine and Orofacial Pain, Institute of Oral Health Science, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, Gyeonggi-do, 16499, Republic of Korea.
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