• The Korean Journal of Pain
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• v.8 no.1
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• pp.86-92
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• 1995

Temporomandibular disorders typically present findings of limited or asymmetric patterns of jaw opening and joint sounds usually described as clicking, popping, grating, or crepitus. Recently, patients with temporomandibular disorders have received an increasingly aggressive treatment with a greater emphasis on surgical and dental reconstruction. Scientific studies have not clearly identified the specific causes of the temporomandibular disorders and therefore some of the treatments are empiric, without a firm scientific foundation. We carried out a study on the patients of pain clinic OPD and concluded that the causes of the temporomandibular joint(TMJ) pain are the prolonged contraction of the muscles of mastication, especially the masseter muscle. Therefore, the spasmolytic treatment of masseter muscle would be a better treatment for TMJ syndrome rather than the surgical and dental reconstruction.

• Journal of Korean society of Dental Hygiene
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• v.14 no.4
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• pp.563-570
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• 2014

Objectives : The purpose of this study was to investigate the relationship of subjective recognition for oral health in HBsAg positive carriers based on the data of the $5^{th}$ National Health and Nutrition Examination Survey. Methods : A statistical package SPSS 21.0 was used to analyze the relationship between oral health status and subjective oral health awareness based on data of the $5^{th}$ National Health and Nutrition Examination Survey. Results : The subjective poor oral health was found in those who had mastication and speaking discomfort and those having dental prosthesis. Conclusions : The respondents considered themselves to be in poor oral health when the subjective systemic health status and objective oral health status were worse.

• The Journal of the Korean dental association
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• v.53 no.6
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• pp.402-410
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• 2015

The aims of occlusal adjustment are as follows: to eliminate occlusal interference, to redirect force generated during function to which is favorable for teeth, to improve mastication efficiency and simultaneously establish stable maximal intercuspation or centric occlusion. Also, it should permit mandible to move freely from all positions. The sequence of occlusal adjustment in natural teeth and fixed prosthesis shall be as follows: 1) Eliminate interference that prevent optimal intercuspation and recontouring adjustment 2) Establish maximal intercuspation 3) Eliminate interference in lateral mandibular movement 4) Eliminate interference in anterior mandibular movement 5) Refine occlusal relationships.

• Elastomers and Composites
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• v.9 no.1
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• pp.5-13
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• 1974

The characteristics of IR and IR blended elastomers, for footwear by means of blending with NR and SBR, have been studied. The results obtained were as follows: 1. The mastication of IR was almost not required, where as NR and SBR are necessary. Therefore mixing time was much reduced because of speedy filler feeding. 2. Disadvantage of low Mooney viscosity was covered by blending with NR and SBR, and by loading filler. Superior flow property in comparison to other polymers was worthy and valuable in providing formulas for mould flow, 3. The elongation property of green stocks and vulcanizates was shown smooth surface for extruded and calendered stocks, and facilitated fabrication processes. 4. Because of slow vulcanization, IR is required to control vulcanization time by adding proper accelerators. This property, in turn, made possible to improve the storing stability of green stocks by controlling scorch time.

• Journal of Oral Medicine and Pain
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• v.43 no.2
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• pp.56-60
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• 2018

Epidermoid cyst in bony wall of external auditory canal (EAC) is a very rare pathologic condition. In addition to its extreme rarity, its positional proximity to temporomandibular joint (TMJ) might lead to clinical misdiagnosis as TMJ disorders, especially when it is accompanied by temporomandibular disorders-like symptoms. In this article, we report a patient with epidermoid cyst in anterior bony wall of EAC, which was misdiagnosed as TMJ disorder because the left TMJ pain aggravated during mastication.

• The Journal of Korean Academy of Prosthodontics
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• v.38 no.6
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• pp.821-828
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• 2000

Metal - ceramic restorations have been the standard of fixed oral rehabilitation for over 30 years, and while many advances have been made in materials and research, the esthetic challenges of the light reflective metal substructure will always put clinician in an esthetic dilemma, for only a very talented ceramist / dentist team can create esthetics that rival nature on a repeatable basis. All ceramic restorations have also been a choice in our restorative armamentarium, but in the past, the materials have also had their own limitation, number on being question-able strength to withstand occlusal forces generated during mastication. IPS Empress 2 offers dentistry a metal free alternative to traditional restorative techniques. This clinical report describes the treatment of patients with esthetic problem of anterior dentition using Empress 2 system.

• The Journal of the Korean dental association
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• v.50 no.5
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• pp.244-255
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• 2012

Temporomandibular disorder(TMD) is described as a cluster of disorders characterized by pain in the preauricular area and/or the muscles of mastication; limitations or deviations in mandibular range of motion; and noises in the TMJ during mandibular function. The most common symptom in TMD patients is pain that is aggravated by chewing or other jaw function. These symptoms are appeared when the stimuli loaded in TMJ are over the physiologic tolerance. The primary goal in treatment of TMD is to alleviate pain and lor mandibular dysfunction. TMD treatment can be divided into 2 categories: reversible and irreversible methods. Reversible methods include medication, thermal therapy, habit modification, physical therapy, appliance therpy and arthrocentesis and lavage and irreversible methods include arthroscopic lysis, surgery, occlusal adjustment et al. It is widely accepted that reversible methods are ther first choice of treatments. However if reversible ones are not effective, irreversible methods are considered.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.21 no.2
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• pp.209-214
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• 1999

Chronic recurrent TMJ dislocation results in difficulty of mastication, speaking, and swallowing due to the limitation of the mandibular movement. Etiologic factors are considered as the looseness of the capsule and ligaments, the decrease of the articular eminence, condylar morphologic change, muscular disharmony near by TMJ, and the decrease of the vertical length of the mandibular ramus. Treatment approach has been suggested that surgical methods are selected for the correction of the etiologic factors when conservative treatments are not effective. Many surgical methods have been reported such as eminectomy, eminence augmentation, condylotomy, and zygomatic arch down fracture technique. We performed the eminence augmentation through interpositional bone graft in chronic recurrent TMJ dislocation. This method leads to favorable postoperative result without recurrence and complication, so we report the case with related references.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.27 no.2
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• pp.177-182
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• 2005

Malocclusion can be often found after improper reduction of facial bone fractures, especially by the plastic surgeon or other medical doctor. This causes lots of problem in esthetics, mastication, or facial symmetry. We present four cases which are related above problems. These were well treated by orthognathic surgery or orthodontic treatment.

• Journal of dental hygiene science
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• v.10 no.4
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• pp.233-239
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• 2010

The study of the elderly and poor oral status interpersonal relationships and smooth social life limited to give is the social alienation and isolation, promoting to having problems with a sense of the elderly subjective oral health status and social efficacy affects whether analyzed. 1. Subjective oral health status authoring feel healthy food disorders, toothache, periodontal problems, tmj pain, dry mouth, bad breath symptoms such as 'sometimes' 'often' than a 'no' if you appear to be a highly subjective and social efficacy Efficacy of oral health status and social influence were more (p<0.01). 2. Subjective oral health status of the seven kinds of sub-variable that oral health status, food authoring disorders, toothache, gum disease, jaw joint or more, dry mouth, bad breath instantly and look at the relationship between social efficacy oral health status, ability of mastication, pain in oral, gum disease, tmj pain, dry mouth, presence of halitosis than positive (+) was correlated.