Understanding Posturo-Occlusal Interrelationships by Combining Digital Occlusal and Posture Diagnostic Technologies

Advances in Medical Technologies and Clinical Practice - Handbook of Research on Clinical Applications of Computerized Occlusal Analysis in Dental Medicine ◽

10.4018/978-1-5225-9254-9.ch017 ◽

2020 ◽

pp. 1175-1242

Author(s):

Patrick Girouard, DMD MS

Keyword(s):

Contact Force ◽

Positional Information ◽

Body Posture ◽

Whole Body ◽

Dental Occlusion ◽

Occlusal Contact ◽

Research Software ◽

Stomatognathic System ◽

Combined Use ◽

Mapping Technology

The nature of the interrelationship between whole body posture and the quality of the dental occlusion has not yet to date been clearly documented within the dental or posture literature, as the findings of published studies within both fields have been scarce and inconclusive. The combined use of digital diagnostic occlusal and postural assessment technologies has not been widely employed in these research projects, which has mired both fields' ability to study, to understand, and to clearly ascertain how posture and dental occlusion affect each other physiologically. As such, the specific aims of this chapter are to outline how posture and dental occlusion interrelate through the stomatognathic system's afferent neural inputs into the central nervous system (CNS), which communicate important occlusal contact force distribution information, and equally as important, mandibular spatial positional information within the posture and balance regions of the brain. The concept that the dental occlusion is a capteur for posture (which in English means, a sensor of posture health), is further explored with the inclusion of three differing clinical posturo-occlusal cases, diagnosed and treated with the combined use of the T-Scan 9 computerized occlusal analysis technology, the MatScan/MobileMat foot pressure mapping technology, and the Footmat Research software version 7.10. These presented clinical cases illustrate that improved right-to-left occlusal contact force balance, and improved center of force location within the dental arches, improve a number of measurable sway parameters. Together, the implementation of the T-Scan and the MatScan exquisitely demonstrate to the clinician the significance of the physiologic interrelationship between body posture and the dental occlusion. The presented cases emphasize there exists a whole-body concept that depends upon a variety of differing systems, whereby changes in the dental occlusion produce a phenomenon of bio-functional neuro-reprogramming for the stomatognathic system and the whole body.

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Whole-body contact force sensing from motion capture

2016 IEEE/SICE International Symposium on System Integration (SII) ◽

10.1109/sii.2016.7843975 ◽

2016 ◽

Cited By ~ 4

Author(s):

Tu-Hoa Pham ◽

Adrien Bufort ◽

Stephane Caron ◽

Abderrahmane Kheddar

Keyword(s):

Motion Capture ◽

Contact Force ◽

Whole Body ◽

Force Sensing ◽

Body Contact

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Recognition and prediction of driver’s whole body posture model

Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering ◽

10.1177/09544070211068676 ◽

2022 ◽

pp. 095440702110686

Author(s):

Jun Wu ◽

Jian Liu ◽

Xiuyuan Li ◽

Lingbo Yan ◽

Libo Cao ◽

...

Keyword(s):

Regression Model ◽

Body Posture ◽

Upper Body ◽

Whole Body ◽

Lower Body ◽

Key Factor ◽

Upper Body Posture ◽

Spatial Coordinates ◽

Posture Prediction ◽

Connection Length

The driver’s whole-body posture at the time of a collision is a key factor in determining the magnitude of injury to the driver. However, current researchs on driver posture models only consider the upper body posture of the driver, and the lower body area which is not perceived by sensors is not studied. This paper investigates the driver’s posture and establishes a 3D posture model of the driver’s whole body through the application of machine vision algorithms and regression model statistics. This study proposes an improved Kinect-OpenPose algorithm for identifying the 3D spatial coordinates of nine keypoints of the driver’s upper body. The posture prediction regression model of four keypoints of the lower body is established by conducting volunteer posture acquisition experiments on the developed simulated driving seat and analyzing the volunteer posture data through using the principal components of the upper body keypoints and the seat parameters. The experiments proved that the error of the regression model in this paper is minor than that of current studies, and the accuracy of the keypoint location and the keypoint connection length of the established driver whole body posture model is high, which provides implications for future studies.

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Influence of an Overload in Occlusal Contact on Stomatognathic System

Proceeding of Japanese Society of Stomatognathic Function ◽

10.7144/sgf1982.6.81 ◽

1988 ◽

Vol 6 ◽

pp. 81-86

Author(s):

Takashi IKEDA ◽

Masaaki YOKOYAMA ◽

Yoshihiro KUBO ◽

Masanori NAKANO ◽

Eiichi BANDO

Keyword(s):

Occlusal Contact ◽

Stomatognathic System

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Detecting and Quantifying Cervical Dentin Hypersensitivity Using Air Indexing Combined with the T-Scan System

Handbook of Research on Computerized Occlusal Analysis Technology Applications in Dental Medicine - Advances in Medical Technologies and Clinical Practice ◽

10.4018/978-1-4666-6587-3.ch009 ◽

2015 ◽

pp. 429-466 ◽

Cited By ~ 1

Author(s):

Thomas A. Coleman, DDS

Keyword(s):

Retrospective Study ◽

Contact Force ◽

Clinical Signs ◽

Applied Force ◽

Dentin Hypersensitivity ◽

Occlusal Force ◽

Occlusal Contact ◽

Occlusal Adjustment ◽

Indexing Method ◽

Analysis System

This chapter introduces the Air Indexing method for detecting and quantifying cervical dentin hypersensitivity as a companion to the T-Scan Occlusal Analysis System, which evaluates occlusal force and timing values of contacting teeth. The chapter discusses detection, diagnosis, and treatment of clinical signs and/or symptoms of Cervical Dentin Hypersensitivity (CDH). A 17-year-long retrospective study conducted between 1979 and 1996 is presented that illustrates the correlation between Cervical Dentin Hypersensitivity and its resolution following occlusal adjustment. Resulting stress from occlusal contact force is etiologic for non-carious cervical lesion formation and root degradation. This chapter details how biocorrosion and lost protective glycoproteins hasten the effects of applied force, creating CDH symptoms and cervical abfractions. Lastly, the Air Indexing method of CDH diagnosis is melded with T-Scan occlusal analysis to diagnose and treat CDH symptoms. Together, these two methods yield more CDH/occlusal insight than either method can alone.

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Occlusal Considerations in the Hypersensitive Dentition

Handbook of Research on Computerized Occlusal Analysis Technology Applications in Dental Medicine - Advances in Medical Technologies and Clinical Practice ◽

10.4018/978-1-4666-6587-3.ch008 ◽

2015 ◽

pp. 358-428 ◽

Cited By ~ 1

Author(s):

Nick Yiannios, DDS

Keyword(s):

Pilot Study ◽

Contact Force ◽

Dentin Hypersensitivity ◽

Analog Scale ◽

Dentinal Tubules ◽

Occlusal Contact ◽

Occlusal Adjustment ◽

Anterior Guidance ◽

Dentinal Hypersensitivity ◽

Guidance Development

In the literature, Dentinal Hypersensitivity (DH) is considered to arise from exposed dentin and patent dentinal tubules. However, clinical observation of recurrent DH sensitivity indicates it can occur in the presence or absence of exposed dentin. Quantified occlusal contact force and timing parameters have been ignored in studies assessing hypersensitive teeth. This chapter introduces a novel occlusal concept: Frictional Dental Hypersensitivity (FDH). Clinical evidence from combining computerized occlusal analysis and electromyography is presented linking opposing posterior tooth friction and muscular hyperactivity to Dentin Hypersensitivity. This chapter proffers how occlusion, muscular TMD symptoms, and frictional Dentin Hypersensitivity are all related. Lastly, a Pilot Study is presented that used a Visual Numerical Analog scale to quantify Dentin Hypersensitivity resolution observed in symptomatic patients who underwent the Immediate Complete Anterior Guidance Development (ICAGD) coronoplasty. This computer-guided occlusal adjustment eliminated pretreatment FDH symptomatology, further supporting that Dentinal Hypersensitivity has an occlusally-based, frictional etiology.

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Combining the Air Indexing Method With the T-Scan System to Detect and Quantify Cervical Dentin Hypersensitivity

Advances in Medical Technologies and Clinical Practice - Handbook of Research on Clinical Applications of Computerized Occlusal Analysis in Dental Medicine ◽

10.4018/978-1-5225-9254-9.ch011 ◽

2020 ◽

pp. 829-878

Author(s):

Thomas A. Coleman. DDS

Keyword(s):

Contact Force ◽

Case Reports ◽

Dentin Hypersensitivity ◽

Cervical Lesions ◽

Occlusal Contact ◽

Indexing Method ◽

Timing Data ◽

Clinical Benefits ◽

Analysis System ◽

Common Clinical Finding

This chapter introduces the air indexing method for detecting and quantifying cervical dentin hypersensitivity (CDH) as a companion to the T-Scan Occlusal Analysis System which evaluates force and timing values for occlusal contacts of teeth. This chapter will also highlight an evidence-based retrospective investigation undertaken between 1979 and 1996 that evaluated associations and/or correlations between diagnosed CDH and its resolution following occlusal adjustment. This retrospective's method described the detection, diagnosis, and treatment of the signs and/or symptoms of the common clinical finding amongst patients with CDH. Stress physics will illustrate how small occlusal contacts magnify the impact that applied occlusal contact force has on the cervical regions of teeth. This resultant cervical stress is etiologic for how non-carious cervical lesions (NCCLs) form and degrade tooth roots. This chapter also explains how biocorrosion from endogenous and exogenous sources produces loss of dentin's protective proteins, glycoproteins, and cementum, which add to the effects of applied occlusal force, thereby creating CDH symptoms and NCCLs. CDH appears resultant from the co-factors of occlusal forces that produce cervical stress, along with biocorrosion, that are both modified by occlusal surface friction. The air indexing method of CDH diagnosis is an objective diagnostic means to detect and quantify CDH symptoms during the formation of cervical lesions. This chapter presents the clinical benefits of melding the T-Scan Occlusal Analysis System with the Air Indexing Method when clinically assessing and treating cervical hard tissue pathologies. The clinician gains significantly more occlusal insight as opposed to using either methodology alone, when air indexing is combined with T-Scan's occlusal contact force and timing data. Lastly, this chapter introduces two case reports of how T-Scan guided occlusal adjustments can be effective at reducing CDH and prohibiting the progression of gingival recession.

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