scholarly journals Concept of rest position of mandible: An overview

2021 ◽  
Vol 7 (2) ◽  
pp. 09-14
Author(s):  
Shayistha MU ◽  
Vivek V Nair ◽  
Harshakumar K ◽  
Noxy George Manjuran
Keyword(s):  
Rest Position

scholarly journals Analysis of Tongue Function from the Orthodontist’s Point of View: Not Only a Matter of Deglutition

2021 ◽  
Vol 11 (6) ◽  
pp. 2520
Author(s):  
Andrea Deregibus ◽  
Simone Parrini ◽  
Maria Chiara Domini ◽  
Jacopo Colombini ◽  
Tommaso Castroflorio
Keyword(s):  
Point Of View ◽  
Control Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Hypoplasia ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Rest Position ◽  
Functional Aspects ◽  
Angle Class Iii Malocclusion

Many studies report that maxillofacial growth is influenced by genetic and environmental elements and that incorrect breathing, chewing, sucking, and swallowing are promoting factors of malocclusion. This study aims to evaluate the function and the influence of the tongue positions in patients with Angle class III malocclusion, maxillary hypoplasia, and posterior crossbite. One hundred patients, aged between 6 and 12 years old, were enrolled for the study. In the first group, patients with a diagnosis of class III malocclusion, affected by maxillary hypoplasia, skeletal class III, and posterior dental crossbite were recruited. In the control group, not treated patients with no malocclusion, skeletal class I, and without posterior dental crossbite were selected. Regarding atypical deglutition, no statistical differences were reported between the two groups, and 14% of patients reported ankyloglossia. Statistical differences were found in tongue rest position and during the execution of “hold and pull” and “chuck” exercises. Results obtained in this observational study showed that the clinician (orthodontist or general dentist) should analyze the presence/absence of atypical swallowing, the anatomical and functional aspects, and the tongue behavior in the rest position.

Evaluation of rest position as a guide in prosthetic treatment

1960 ◽  
Vol 10 (4) ◽  
pp. 643-650 ◽  
Author(s):  
Elmer T. Duncan ◽  
Sidney T. Williams
Keyword(s):  
Rest Position

scholarly journals Mechanical Properties of Grains Sorghum Subjected to Compression at Different Moisture Contents

2019 ◽  
Vol 11 (4) ◽  
pp. 279
Author(s):  
Gabrielly B. Rodrigues ◽  
Osvaldo Resende ◽  
Daniel E. C. de Oliveira ◽  
Lígia C. de M. Silva ◽  
Weder N. Ferreira Junior
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Uniaxial Compression ◽  
Deformation Modulus ◽  
Grain Sorghum ◽  
Parallel Plates ◽  
Compression Force ◽  
Moisture Contents ◽  
Rest Position ◽  
Different Temperatures

This study aimed to evaluate the influence of drying at different temperatures on the mechanical properties of grains of grain sorghum subjected to compression at the natural rest position. Grains dried at temperatures of 60, 80 and 100 °C with different moisture contents (0.515; 0.408; 0.315; 0.234; 0.162 and 0.099 (d.b.)) were subjected to uniaxial compression between two parallel plates, applied at their natural rest position, at a rate of 0.001 m s-1. The force required to rupture in grains of grain sorghum increased as their moisture contents decreased, with values of 47.17 to 78.44 N, 61.81 to 69.66 N and 52.07 to 70.89 N for the temperatures of 60, 80 and 100 °C, respectively. The compression force required to deform grain sorghum decreased with the increment in moisture content, and the proportional deformation modulus increases with moisture content reduction. Within the studied range of moisture content, the values were 87 × 10-7 to 354.99 × 10-7 Pa, 132.63 × 10-7 to 465.98 × 10-7 Pa and 80.18 × 10-7 to 429.85 × 10-7 Pa for the temperatures of 60, 80 and 100 °C, respectively.

scholarly journals A Tomographic Study of the Mandibular Condyle Position in Partially Edentulous Population

2015 ◽  
Vol 16 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Susan Ammanna ◽  
Anisha Rodrigues ◽  
N Sridhar Shetty ◽  
Karunakar Shetty
Keyword(s):  
Mandibular Condyle ◽  
Joint Space ◽  
Class I ◽  
Linear Measurements ◽  
Posterior Displacement ◽  
Stomatognathic System ◽  
Rest Position ◽  
Condyle Position ◽  
Condylar Position ◽  
Partially Dentate

ABSTRACT Background and objectives The influence of the loss of teeth on the condylar position and on temporomandibular joint (TMJ) dysfunction syndrome remains a controversial issue. This study analyses the condylar position by means of a tomogram in partially dentate subjects which serves as a guide to predict which of the partially dentate statuses is prone to develop TMJ dysfunction syndrome in personnel without symptoms of the same. Methodology Eighty personnel were enrolled in this study consisting of Kennedy's class I, II, III, IV and control to analyze the condylar position by means of a tomogram. In all the five groups TMJ sectional tomogram programmed in a panoramic radiographic machine (PLANMECA PM 2002 CC PROLINE) was taken with the subjects at maximal intercuspal position and rest position. Tomograms were evaluated using linear measurements of the anterior and posterior intra-articular joint spaces on the basis of drawings and tracings. Results The results of the study revealed a predominance of reduced posterior condylar space in Kennedy's class I and II. A disparity was seen between the maximum intercuspal position and rest position, where the posterior joint space was reduced in the rest position. Conclusion Within the limitations of this study, it has been revealed that in Kennedy's classes I and II, for partially dentate personnel, a posterior displacement of the condyles was seen. This predisposition would suggest towards the necessity of restoring the missing dentition in order to maintain the harmony of the stomatognathic system. How to cite this article Ammanna S, Rodrigues A, Shetty NS, Shetty K, Augustine D, Patil S. A Tomographic Study of the Mandibular Condyle Position in Partially Edentulous Population. J Contemp Dent Pract 2015;16(1):68-73.

scholarly journals Turn Continuations and Gesture: “And Then”-Prefacing in Multi-Party Conversations

2021 ◽  
Vol 6 ◽  
Author(s):  
Sara Rönnqvist ◽  
Jan Lindström
Keyword(s):  
Visual Art ◽  
Free Standing ◽  
Hand Gestures ◽  
The Core ◽  
Rest Position

This article offers an analysis of turn-expanding practices with the connective å sen ‘and then’ in Swedish multi-party conversations in which the participants discuss and assess works of visual art. The connective is recurrently used to introduce a turn continuation, i.e. a stretch of talk that is produced after a possibly completed turn-constructional unit (TCU). We identify three types of continuations: same-speaker continuations, occurring post gap or post-other talk, and other-continuations by the next speaker. Some of the “and then” continuations are clausal, syntactically free-standing, while non-clausal continuations have more in common with TCU increments. “And then” continuations specify, restrict or redirect the unfolding contribution while at the same time orienting to a collective interactional project. In same-speaker continuations, the speaker can introduce a new aspect of the established theme or offer an account. Other-continuations can be used to achieve a shift in footing to introduce a somewhat non-aligning contribution. Both grammar and embodied resources (especially hand gestures) are activated in the management of the completion of a prior turn unit, the initiation of a turn continuation and the recompletion of the speaker’s turn. The typical multimodal trajectory is: syntactic completion of a first unit + retracted gesture; link to prior talk and upcoming talk with “and then” followed by the core of the continuation + a redeployed gesture; and finally, syntactic completion of the continuing unit + retracted gesture to a rest position.

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