scholarly journals Active tactile sensibility of three-unit implant-supported FPDs versus natural dentition

2019 ◽  
pp. 0-0
Author(s):  
R Negahdari ◽  
M Ghavimi ◽  
M Ghanizadeh ◽  
S Bohlouli
Keyword(s):  
Tactile Sensibility ◽  
Natural Dentition

scholarly journals Active Tactile Sensibility of Brånemark Protocol Prostheses: A Case–Control Clinical Study

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4644
Author(s):  
Nathalia Moraes ◽  
Eduardo Moraes ◽  
Tiago Anastacio ◽  
Licínio Silva ◽  
Aldir Machado ◽  
...  
Keyword(s):  
Case Control ◽  
Clinical Applications ◽  
Physiological Integration ◽  
Control Group ◽  
Inclusion Criteria ◽  
Tactile Sensibility ◽  
Carbon Foils ◽  
Natural Dentition ◽  
Experimental Group ◽  
Control Clinical Study

Few studies have assessed active tactile sensibility in patients rehabilitated with implants. Improved knowledge about functional tactile sensibility will contribute to several clinical applications, such as protocols for immediate loading, prosthesis design, occlusal improvement in implantology, and physiological integration of implant-supported prostheses. The present study evaluated active tactile sensibility in patients rehabilitated with Brånemark-type mandibular prostheses that impede the total mucosa-supported maxillary prosthesis. Thirty-five subjects participated in this study. The experimental group (n = 18) inclusion criteria were as follows: Brånemark-type prosthesis and a total mucosa-supported maxillary prosthesis. The control group (n = 17) was composed of participants with complete healthy dentition. Carbon foils with different thicknesses (12 μm, 24 μm, 40 μm, 80 μm, and 200 μm) were placed in the premolar region to evaluate the brink of active oral tactile sensibility. The researchers assessed the participants 120 times. After evaluation, we observed a statistical difference (p < 0.05) between the groups. Additionally, the degree of sensibility was found for all thicknesses, except for 12 μm, on both sides. There was a more significant increase in perception in the control group as the carbon thickness increased. The tactile sensibility threshold was 2.5 times greater for participants with prostheses. Thus, the tactile sensibility for mandibular implant-supported and maxillary mucosa-supported prostheses is significantly lower than that of dentate patients, which was detected above the thickness of 80 μm; in patients with natural dentition, different thicknesses were seen starting from 24 μm.

scholarly journals Importance of Osseoperception and Tactile Sensibility during Masticatory Function in Different Prosthetic Rehabilitations: A Review

Medicina ◽  
2022 ◽  
Vol 58 (1) ◽  
pp. 92
Author(s):  
Diego González-Gil ◽  
Ibrahim Dib-Zaitum ◽  
Javier Flores-Fraile ◽  
Joaquín López-Marcos
Keyword(s):  
Web Of Science ◽  
Complete Dentures ◽  
Tactile Sensibility ◽  
Pubmed Central ◽  
Masticatory Function ◽  
Masticatory Efficiency ◽  
Natural Teeth ◽  
Implant Prosthesis ◽  
The Difference ◽  
Natural Dentition

Background and Objectives: Tactile sensibility is an important characteristic for evaluating the masticatory efficiency in different occlusal situations. When a tooth is extracted, relevant proprioceptors from the periodontal ligament get lost; and after the rehabilitation of this abscess by means of oral prosthesis, this sensibility decreases influencing masticatory function. Osseoperception is a sensitive phenomenon associated with dental implants that allows an increased tactile sensibility to those wearing implant prostheses. The purpose of this study was to determine the difference in tactile sensibility values between implant prosthesis, complete dentures, and natural teeth through a review of the available literature. Materials and Methods. In order to dissect the information, 24 articles from 2004 to 2021 were analyzed from MEDLINE, PubMed Central, and Web of Science databases. These articles were directly related to measuring tactile sensibility in different situations and demonstrating the influence of osseoperception in an improved masticatory function. Results: Tactile sensibility in implant prosthesis is slightly reduced compared with natural dentition but presents improved values with regard to complete dentures. Conclusions: Implant prosthesis are more effective during masticatory function than complete dentures, as they present an increased tactile sensibility, very similar to that present in natural dentition. This enhanced sensibility in implants is due to the osseoperception phenomenon.

Reabilitação estética de incisivo central superior severamente escurecido

2020 ◽  
Vol 12 (45) ◽  
pp. 91-96
Author(s):  
Washington José Batista das Neves ◽  
João Paulo Alves da Silva Aguiar ◽  
Jamile Menezes de Souza ◽  
Evandro Augusto Feitosa de Lima Amorim ◽  
Marlus da Silva Pedrosa ◽  
...  
Keyword(s):  
Clinical Case ◽  
Tooth Whitening ◽  
Human Eye ◽  
Self Confidence ◽  
The Face ◽  
Natural Dentition ◽  
Dental Whitening

Dental unit darkening is the cause of aesthetic complaint by the patient, mainly because it is easily noticed by the human eye. Tooth whitening and ceramic veneers allow aesthetic rehabilitation in a pattern of visual equality to the natural dentition, by restoring teeth color and shape symmetry, bringing to the face a harmonious impact that is reflected in the entire set that composes it. By recovering teeth healthy appearance, this association of procedures restores people’s self-confidence. This study reports a clinical case of an esthetic management for darkened tooth 21, describing the sequence of techniques association of dental whitening and ceramic veneer to achieve aesthetics balance, showing the advantages and limitations of these procedures.

Visual and Tactile Information About Object-Curvature Control Fingertip Forces and Grasp Kinematics in Human Dexterous Manipulation

2000 ◽  
Vol 84 (6) ◽  
pp. 2984-2997 ◽  
Author(s):  
Per Jenmalm ◽  
Seth Dahlstedt ◽  
Roland S. Johansson
Keyword(s):  
Visual Processing ◽  
Visual Cues ◽  
Grip Force ◽  
Center Of Mass ◽  
Precision Grip ◽  
Sensory Information ◽  
Afferent Input ◽  
Dependent Manner ◽  
Tactile Sensibility ◽  
Grasp Stability

Most objects that we manipulate have curved surfaces. We have analyzed how subjects during a prototypical manipulatory task use visual and tactile sensory information for adapting fingertip actions to changes in object curvature. Subjects grasped an elongated object at one end using a precision grip and lifted it while instructed to keep it level. The principal load of the grasp was tangential torque due to the location of the center of mass of the object in relation to the horizontal grip axis joining the centers of the opposing grasp surfaces. The curvature strongly influenced the grip forces required to prevent rotational slips. Likewise the curvature influenced the rotational yield of the grasp that developed under the tangential torque load due to the viscoelastic properties of the fingertip pulps. Subjects scaled the grip forces parametrically with object curvature for grasp stability. Moreover in a curvature-dependent manner, subjects twisted the grasp around the grip axis by a radial flexion of the wrist to keep the desired object orientation despite the rotational yield. To adapt these fingertip actions to object curvature, subjects could use both vision and tactile sensibility integrated with predictive control. During combined blindfolding and digital anesthesia, however, the motor output failed to predict the consequences of the prevailing curvature. Subjects used vision to identify the curvature for efficient feedforward retrieval of grip force requirements before executing the motor commands. Digital anesthesia caused little impairment of grip force control when subjects had vision available, but the adaptation of the twist became delayed. Visual cues about the form of the grasp surface obtained before contact was used to scale the grip force, whereas the scaling of the twist depended on visual cues related to object movement. Thus subjects apparently relied on different visuomotor mechanisms for adaptation of grip force and grasp kinematics. In contrast, blindfolded subjects used tactile cues about the prevailing curvature obtained after contact with the object for feedforward adaptation of both grip force and twist. We conclude that humans use both vision and tactile sensibility for feedforward parametric adaptation of grip forces and grasp kinematics to object curvature. Normal control of the twist action, however, requires digital afferent input, and different visuomotor mechanisms support the control of the grasp twist and the grip force. This differential use of vision may have a bearing to the two-stream model of human visual processing.

scholarly journals Osseointegrated Silicone Finger Prosthesis using Dental Implants: A Renovated Technique

2014 ◽  
Vol 15 (6) ◽  
pp. 818-820
Author(s):  
Dileep Nag Vinnakota ◽  
V Vijay Sankar ◽  
Naveen Chirumamilla ◽  
V Vamsikrishna Reddy
Keyword(s):  
Dental Implants ◽  
Middle Finger ◽  
Self Esteem ◽  
Tactile Sensibility ◽  
Metal Framework ◽  
Finger Prosthesis ◽  
Sense Of Satisfaction ◽  
Present Trial ◽  
Congenitally Missing ◽  
Transplantation Procedures

ABSTRACT Aim and background In clinical practice, we come across patients with traumatically amputated or congenitally missing partial or complete fingers that can be restored using microsurgical replantation or transplantation procedures. However, in some cases this might not be possible due to systemic or local factors and the lost or missing part has to be replaced prosthetically to offer psychological and functional wellbeing. These prostheses can be constructed with various materials like acrylics or silicone retained with the help of auxiliary aids. However, these prostheses cause some hindrance in performing functions like writing, typing, etc. The aim of the present trial was to ameliorate the existing design of implant supported finger prosthesis. Technique Distal phalange of middle finger replaced with implant supported silicone finger prosthesis is modified by utilizing a metal framework to support silicone material to improve rigidity while working. Conclusion and clinical significance We could achieve a good function, esthetics and tactile sensibility with this modified design. Whenever, feasible this design can improve the performance and patients feel a deep sense of satisfaction and improved self-esteem with this modified prosthesis. How to cite this article Vinnakota DN, Sankar VV, Chirumamilla N, Reddy VV. Osseointegrated Silicone Finger Prosthesis using Dental Implants: A Renovated Technique. J Contemp Dent Pract 2014;15(6):818-820.

scholarly journals Use of Frenum in Determining the Original Vertical Position of Teeth

2013 ◽  
Vol 7 (1) ◽  
pp. 44-46 ◽  
Author(s):  
KD Prasad ◽  
H Alva
Keyword(s):  
Coefficient Of Variation ◽  
Vertical Position ◽  
Central Incisor ◽  
Incisal Edge ◽  
The Mean ◽  
Natural Dentition ◽  
Lingual Frenum ◽  
Functional Position

ABSTRACT Purpose To determine the functional position of labial, lingual and buccal frenii with the corresponding central incisor, premolar or molars in natural dentition. Materials and method 20 dentate subjects between 20-40years of age were selected for the study. Maxillary and mandibular impressions were made and the distance from anterior attachment of frenum to the cusp tip of the corresponding tooth was measured. Result The mean distance between the anterior attachment of labial frenum to the incisal edge of incisor was 12.25mm, the mean distance between the anterior attachment of buccal frenum of right side to cusp tip of corresponding teeth was 12.75mm and left side was 12.8mm and the mean distance between the anterior attachment of lingual frenum to incisal edge of incisor was 15.4mm. The coefficient of variation were 14.7%, 16.65%, 15.75% and 6.4% respectively. Conclusion The distance between the anterior attachment of the frenum to the cusp tips/incisal edges can be used as a pre-extraction record for determining the original vertical position of teeth.

scholarly journals Failures in periodontal therapy

1970 ◽  
Vol 9 (4) ◽  
pp. 193-198
Author(s):  
KD Jithendra ◽  
A Bansali ◽  
SS Ramachandra
Keyword(s):  
Risk Factors ◽  
Periodontal Disease ◽  
Treatment Options ◽  
Medical Science ◽  
Treatment Strategies ◽  
Periodontal Therapy ◽  
Plaque Control ◽  
Natural Dentition ◽  
Oral Hygiene Instructions ◽  
Biomechanical Factors

Studies have shown that modern periodontal therapies are effective in maintaining a healthy natural dentition as well as controlling periodontal disease. Numerous treatment strategies and various techniques have been designed & described to treat periodontal disease. Most of these procedures had drawbacks which were identified, leading to the modifications of the original techniques which lead to better treatment options, but still very less emphasis has been laid on failures. Without a regular program of clinical re-evaluation, plaque control, oral hygiene instructions, and reassessment of biomechanical factors the benefits of treatment are often lost and inflammatory disease in the form of recurrent periodontitis may result. So, this review describes the most common failures noticed in periodontal therapies and also discusses the possible solutions to reduce the incidence of failures in periodontal therapy.Key words: Periodontal therapy; risk factors; failures.DOI: 10.3329/bjms.v9i4.6680Bangladesh Journal of Medical Science Vol.09 No.4 July 2010 pp.193-198

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