scholarly journals Masticatory function after bite-raising with light-cured orthodontic band cement in healthy adults

2019 ◽  
Vol 90 (2) ◽  
pp. 263-268
Author(s):  
Chidsanu Changsiripun ◽  
Darin Pativetpinyo
Keyword(s):  
Food Intake ◽  
Orthodontic Treatment ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Masticatory Performance ◽  
Masticatory Function ◽  
Normal Occlusion ◽  
Masticatory Ability ◽  
Food Particles

ABSTRACT Objectives: To evaluate the effects of bite-raising with light-cured orthodontic band cement, a method commonly used in contemporary orthodontic treatment, on masticatory function, as assessed by objective and subjective methods. Materials and Methods: The objective evaluation of masticatory performance and subjective evaluation of masticatory ability were performed on 30 healthy volunteers (19 females and 11 males, 22.3 ± 1.56 years) with a normal occlusion. Assessment was performed before and immediately after bite-raising. The bite-raising was done by adding light-cured orthodontic band cement (3 × 5 × 2-mm width × length × height) on the palatal cusps of the upper first molars. The masticatory performance index (MPI) was calculated from chewed test food particles using a sieving method. For the subjective evaluation, the participants performed the food intake ability (FIA) test using a questionnaire with six types of food. The correlation between the evaluation methods was determined. Results: The MPI and FIA scores of the participants were significantly reduced after bite-raising (P < .001). The MPI and FIA score reduction was not significantly different between females and males. No significant correlations were found between the changes in MPI and FIA scores. Conclusions: Masticatory function after bite-raising with light-cured orthodontic band cement was immediately reduced, both objectively and subjectively. However, because there was no significant correlation between the objective and subjective results, an individual may not perceive his/her decreased masticatory ability to the same degree as masticatory performance was reduced. Further study is required to evaluate the long-term adaptation to this bite-raising method.

Masticatory Function with Implant-supported Overdentures

2004 ◽  
Vol 83 (9) ◽  
pp. 708-711 ◽  
Author(s):  
F.M.C. van Kampen ◽  
A. van der Bilt ◽  
M.S. Cune ◽  
F.A. Fontijn-Tekamp ◽  
F. Bosman
Keyword(s):  
Clinical Trial ◽  
Masticatory Performance ◽  
Treatment Results ◽  
Oral Implants ◽  
Masticatory Function ◽  
Masticatory Efficiency ◽  
Food Particles ◽  
Implant Treatment

The type of attachment that is used in implant-supported mandibular overdentures may influence the retention and stability of the prosthesis and, thus, masticatory function. In this within-subject cross-over clinical trial, we examined the hypothesis that greater retention and stability of the overdenture improve the masticatory function. Eighteen edentulous subjects received 2 oral implants, a new overdenture, and, successively, 3 different suprastructure modalities: magnet, ball, and bar-clip. Masticatory performance, masticatory efficiency, and swallowing threshold were measured. The masticatory function significantly improved after implant treatment with each of the 3 attachments. We observed small differences in masticatory function among the 3 attachment types: slightly better masticatory performance with ball and bar-clip than with magnet attachments. The number of chewing cycles until swallowing hardly decreased after implant treatment. We conclude that significantly better masticatory performance, combined with a slightly smaller number of chewing cycles after implant treatment, results in smaller food particles being swallowed.

scholarly journals Assessment of Age-Related Changes on Masticatory Function in a Population with Normal Dentition

2021 ◽  
Vol 18 (13) ◽  
pp. 6899
Author(s):  
Seonhui Kim ◽  
Re-Mee Doh ◽  
Leegang Yoo ◽  
Sol-Ah Jeong ◽  
Bock-Young Jung
Keyword(s):  
Dental Treatment ◽  
Handgrip Strength ◽  
Age Groups ◽  
Muscle Thickness ◽  
Objective Evaluation ◽  
Bite Force ◽  
Tongue Pressure ◽  
Masticatory Performance ◽  
Masticatory Function ◽  
Age Related

This study aimed to investigate the influence of changes in age-related physiological muscular and dental factors on masticatory function. This study was conducted in 211 healthy participants divided into four different age groups: 20–45 years (Gr1); 45–60 years (Gr2); 61–70 years (Gr3); and ≥71 years (Gr4). For objective evaluation of masticatory function, the masticatory performance, bite force, posterior bite area (PBA), functional tooth units (FTUs), the number of remaining teeth, tongue pressure, masseter muscle thickness (MMT), and handgrip strength were examined. Food intake ability (FIA) and the Oral Health Impact Profile-14 score were assessed subjectively using questionnaires. A significant decrease in the number of remaining teeth, FTUs, handgrip strength, and FIA was found in Gr4, and a significant decrease in the tongue pressure, PBA, and bite force was found in those aged ≥61 years. In groups 1 and 3, an association of the PBA with masticatory performance was observed. However, there was no significant decreasing trend in the MMT with respect to masticatory performance with aging. With sufficient FTUs and posterior tooth support, although age-dependent decreases in the bite force, tongue pressure and handgrip strength were observed, masticatory performance was maintained. Establishing the PBA by improving occlusion through dental treatment is thought to be important for masticatory function.

Masticatory Function Assessment of Adult Patients With Cleft Lip and Palate After Orthodontic Treatment

2021 ◽  
pp. 105566562199173
Author(s):  
Sayumi Miura ◽  
Hiroshi Ueda ◽  
Koji Iwai ◽  
Cynthia Concepcion Medina ◽  
Eri Ishida ◽  
...  
Keyword(s):  
Contact Area ◽  
Orthodontic Treatment ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Adult Patients ◽  
Occlusal Force ◽  
Occlusal Contact ◽  
Masticatory Function ◽  
Masticatory Efficiency ◽  
Normal Occlusion

Objective: To determine whether orthodontically treated patients with cleft lip and palate (CLP) possess a different masticatory function than those of untreated patients with normal occlusion. Design: Occlusal contact area, occlusal force, as well as masseter and anterior temporal muscular activity were measured during maximum voluntary clenching (MVC) tests. Mandibular left and right lateral movements during mastication were also assessed. To further elucidate the nature of masticatory function, especially to determine the rate of abnormal jaw movement patterns, a parametric error index (EI) was set. Finally, masticatory efficiency was evaluated with a glucose sensitive measuring device. Participants: Fifteen patients with CLP who had previously completed the orthodontic treatments required to achieve an acceptable and more harmonious occlusion accepted to volunteer in this study along with 21 untreated patients who already possessed a normal occlusion. Results: Patients with CLP showed a significantly lower occlusal force, reduced occlusal contact area, and decreased masticatory efficiency as well as significantly higher EI value when compared with controls. However, there was no significant difference when analyzing muscle activity, although masticatory efficiency was significantly different between the 2 groups. Despite this result, the scores obtained by the patients with CLP in the masticatory efficiency tests were still in the normal range. Conclusions: Orthodontic treatment for adult patients with CLP provides a satisfactory result for the patients’ masticatory ability albeit significantly less ideal compared with untreated patients with normal occlusion.

scholarly journals Is the main goal of mastication achieved after orthodontic treatment? A prospective longitudinal study

2017 ◽  
Vol 22 (3) ◽  
pp. 72-78 ◽  
Author(s):  
Gustavo Hauber Gameiro ◽  
Isabela Brandão Magalhães ◽  
Mariana Marcon Szymanski ◽  
Annicele Silva Andrade
Keyword(s):  
Particle Size ◽  
Orthodontic Treatment ◽  
Size Reduction ◽  
Control Group ◽  
Masticatory Performance ◽  
Median Particle Size ◽  
Particle Size Reduction ◽  
Normal Occlusion ◽  
Median Particle ◽  
The Moment

ABSTRACT Objective: To investigate the masticatory and swallowing performances in patients with malocclusions before and after orthodontic treatment, comparing them to an age- and gender-matched control group with normal occlusion. Methods: Twenty-three patients with malocclusions requiring orthodontic treatment were included in this prospective study. One month after appliance removal, seventeen patients completed a follow-up examination and the data were compared with those of a control group with thirty subjects with normal occlusion. Masticatory performance was determined by the median particle size for the Optocal Plus® test food after 15 chewing strokes, and three variables related to swallowing were assessed: a) time and b) number of strokes needed to prepare the test-food for swallowing, and c) median particle size of the crushed particles at the moment of swallowing. Results: At the baseline examination, the malocclusion group had a significantly lower masticatory performance and did not reach the particle size reduction at the moment of swallowing, when compared with the control group. After treatment, the masticatory performance significantly improved in the malocclusion group and the particle size reduction at swallowing reached the same level as in the control group. Conclusions: The present results showed that the correction of malocclusions with fixed appliances can objectively provide positive effects in both mastication and deglutition processes, reinforcing that besides aesthetic reasons, there are also functional indications for orthodontic treatment.

Predictive Value of Subjective and Objective Evaluation Before Acupuncture Treatment

1992 ◽  
Vol 20 (01) ◽  
pp. 17-23 ◽  
Author(s):  
Hans-Henrik Bülow ◽  
Birgitte Viebak Christensen ◽  
Henrik Wilbek ◽  
Inger Ulldal Iuhl ◽  
Niels C. Dreijer ◽  
...  
Keyword(s):  
Acupuncture Treatment ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Long Term Results ◽  
Knee Movement ◽  
Long Term Effect ◽  
Duration Of Disease ◽  
Acupuncture Research

To evaluate if it is possible to predict the outcome of acupuncture treatment in patients with knee osteoarthrosis, six treatments were given during a 3 week period. Follow-up time was 9-17 weeks. Seven parameters were evaluated to examine if they had any influence on the outcome of treatment: Age, duration of disease, pain, range of knee movement, analgesic consumption, knee score (an objective and subjective evaluation of the knees) and x-ray changes. Twenty-nine patients were included with a total of 42 osteoarthritic knees waiting for a total knee replacement. The median age was 69.2 years, and median duration of disease was 4.2 years. 85% of the participants reported a subjective effect, and in 88% an objective effect was found. Although there were some significant differences when you looked at the 7 parameters above, the pattern was not a consistent one. Follow up results also indicated that those with the best immediate results, not necessarily were the ones with the best long-term effect. It is not possible to predict the outcome of acupuncture treatment of osteoarthritic knees. Immediate results are not a guide-line for long-term results, which indicate that acupuncture research must include a follow-up period.

scholarly journals Effects and Changes on Voice After Rhinoplasty: A Long-Term Report

2019 ◽  
Vol 27 (3) ◽  
pp. 230-236 ◽  
Author(s):  
Giuseppe Guarro ◽  
Francesco Brunelli ◽  
Barbara Rasile ◽  
Carmine Alfano
Keyword(s):  
Subjective Evaluation ◽  
Working Life ◽  
Objective Evaluation ◽  
Open Rhinoplasty ◽  
Vowel Sound ◽  
Open Approach ◽  
Nasal Consonant ◽  
The Voice ◽  
Consonant Sounds

Introduction: Vocal changes after rhinoplasty have been poorly investigated, although this surgical procedure is nowadays one of the most requested. The production of voice largely depends on the anatomy and the size of the pyramid and the nasal cavity. The authors report 51 cases of both closed and open rhinoplasty and propose a 2-year report to analyze potential effective changes on voice. Materials and Methods: Fifty-one patients were enrolled and evaluated from September of 2012 to January of 2018. All patients were studied before and 2 years after surgery. Vocal changes were assessed with an objective and a subjective evaluation. The first one allowed to perform the measurement of the intensity and frequency of vowel sound (“a”) and nasal consonant sounds (“n” and “m”). For the subjective evaluation, our modified version of Voice Handicap Index Score allowed us to evaluate every single characteristic of the personal perception of voice. Results: The objective evaluation showed an increased frequency of production of the consonant sounds in 62% of cases and an increased frequency of production of the vowel sound in 68% of cases. The subjective evaluation allowed us to notice significant changes after surgery ( P = .044). No significant differences were noticed between closed and open approach. Conclusion: Reduction rhinoplasty technique proved to induce several alterations on vocal pattern. The surgeon should always inform patients about the potential effects on the voice, particularly when such changes may produce influences on the working life.

Perbedaan Analisis Sefalometri Skeletal Sebelum dan Sesudah Perawatan Alat Myofunctional pada Pasien Maloklusi Dentoskeletal Kelas II Divisi I dalam Masa Pertumbuhan dengan Metode Steiner

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Nugroho Ahmad Riyadi
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
T Test ◽  
Analytic Study ◽  
Statistic Analysis ◽  
Twin Block ◽  
Normal Occlusion ◽  
Division 1 ◽  
Before And After ◽  
Class Ii Division 1

The aim of orthodontics treatment is normalization of teeth position in three planes, using various orthodontics appliance to reach the chepalometric standar and normal occlusion. Orthodontic treatment for dentoskeletal class II division 1 malocclusion in growing patients using myofunctional appliance may correct anteroposterior planes of mandibula. This study was a descriptive retrospective analytic study to look at the success of Orthodontic treatment for dentoskeletal class II division 1 in growing patients with myofunctional appliance using chepalometrics analysis Steiner value. The sample used in this study is chepalogram radiographic from patient with dentoskeletal class II division 1 malocclusion in growing patients before and after using myofunctional appliance in PPDGS orthodontics Clinic of Padjadjaran University. Statistic analysis were performed with pair t-test and Wilcoxon. Based on this study, it is concluded that orthodontic treatment with myofunctional appliance such as activator and twin block in growing patient with dentoskeletal class II division 1 malocclusion shows significant changes and compatibility with the normal criteria.

Provincial Differences in Long-Term Care Menu Variety and Food Intake for Residents who Consume a Regular Texture

2019 ◽  
pp. 1-7
Author(s):  
Christine Lagacé ◽  
Natalie Carrier ◽  
Lita Villalon ◽  
Christina Lengyel ◽  
Susan Slaughter ◽  
...  
Keyword(s):  
Food Intake ◽  
Long Term Care ◽  
Term Care ◽  
Regular Texture

METHODOLOGY OF OBJECTIVE EVALUATION OF THE QUALITY BEARINGS BY VIBRO-ACOUSTICS AND ITS COMPARISON WITH A SUBJECTIVE METHOD

Akustika ◽  
2020 ◽  
pp. 58-66
Author(s):  
Stanislav Žiaran ◽  
Ondrej Chlebo ◽  
Ĺubomír Šooš
Keyword(s):  
Dynamic Load ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Living Environment ◽  
Working Environment ◽  
Subjective Method ◽  
Auditory Organ ◽  
Objective Methodology ◽  
Fft Analysis

The quality of bearing production has an impact not only on their reliability and lifetime, but also on the dynamic load of the working and living environment by excessive vibration and thus also noise. The intensity of the noise emitted by a bearing which is perceived by man characterizes the quality of its production. Reducing the dynamic load of mechanical systems and their components is reflected in the working environment by reducing noise emissions and immissions. The article proposes an objective method of bearing quality assessment based on measuring vibro-acoustic parameters of dynamic load of a new bearing using FFT analysis and the magnitude of the amplitude of bearing vibration acceleration and compares it with a subjective method that also uses the human auditory organ to assess bearing quality. The results of vibro-acoustic measurements were analysed in terms of vibration intensity and the noise of the produced bearings. The proposed objective methodology was compared with the subjective evaluation of the quality of bearings and the results of this methodology matched. The proposed methodology is applicable to all types of bearings, and it is possible to automate this methodology in the production process.

scholarly journals Objective Evaluation of Drivability in Passenger Cars with Dual-Clutch Transmission: A Case Study of Static Gearshift Condition

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Wei Zhou ◽  
Xuexun Guo ◽  
Xiaofei Pei ◽  
Chengcai Zhang ◽  
Jun Yan ◽  
...  
Keyword(s):  
Fuzzy Ahp ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Dual Clutch Transmission ◽  
Evaluation Tool ◽  
Passenger Cars ◽  
Denoising Method ◽  
Fuzzy Matrix ◽  
Predictability Score

This paper is aimed at the problem that the subjective drivability evaluation by experienced test drivers is limited in time efficiency and is of high cost and poor repeatability. In this article, an intelligent drivability objective evaluation tool (I-DOET) for passenger cars with dual-clutch transmission (DCT) is developed and verified by real vehicle testing. First, the signal denoising method and its key parameters, which are suitable for drivability evaluation, are selected based on analytic hierarchy process (AHP) and technique for order preference by similarity to ideal solution (TOPSIS). Besides, combined with the uncertainty characteristics of subjective judgment, a mathematical model of the objective drivability evaluation FARODE (fuzzy AHP-RS based on objective drivability evaluation) is proposed by using the fuzzy comprehensive assessment (FCA) method. The AHP and rough set (RS) method are used to calculate the subjective and objective weights of the drivability evaluation, respectively, and the proportion of subjective and objective weights is determined by the principle of minimum relative information entropy. The fuzzy matrix is built by membership function of the evaluation indexes. Finally, the static gearshift condition focused on by the subjective evaluation experts is taken as a case study. The predictability score is obtained by combining the drivability quantization lever vector, comprehensive weight, and fuzzy matrix. The experimental results indicate that the proposed method is applicable for objective drivability evaluation in passenger cars with DCT.

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