Volume 15 - Issue 4

Fifty-eight consecutive patients in a referral based practice seeking treatment for complex chronic painful temporomandibular joint (TMJ) disease were enrolled in a prospective study to assess the recapture of displaced disks by anterior repositioning appliances (ARA) and the improvement in disk position in those disks that did not fully recapture. After standard clinical workup, including assessment of pain, maxillary and mandibular ARAs were constructed which repositioned condyles to the Gelb 4/7 position as determined ...

We conducted a follow-up study of 150 patients with temporomandibular disorders, of whom 91 had muscle pain and 59 locking, in order to investigate the response to conservative treatment. The patients with muscle pain showed fairly uniform age distribution, while the percentage over 49 years of age was lower in those with locking. Of the patients with TMJ locking, the ...

This study was conducted in order to determine the effects of body position on electromyographic (EMG) activity of sternocleidomastoid and masseter muscles, in 15 patients with myogenic cranio-cervical-mandibular dysfunction undergoing occlusal splint therapy. EMG activity was recorded by placing surface electrodes on the sternocleidomastoid and masseter muscles (contralateral to the habitual sleeping side of each patient). EMG activity at rest and during swallowing of saliva and maximal voluntary clenching was recorded in the following body ...

Many anatomical variations of the infratemporal area exist: muscle fusion, muscle belly separation, distinctly different origins, and both separate and aponeurotic insertions. This study is an attempt to find the frequency of occurrence of the zygomandibularis muscle, a recently described human structure. The zygomandibularis muscle may occur unilaterally, bilaterally, or may be absent. In this study, 23 female caucasian cadavers ...

This study compared the presence of headache and bruxing behavior among 133 craniomandibular disorder patients (CMD) referred to the The Center For the Study Of Craniomandibular Disorders and to the presence of headache and bruxing behavior occurring in 133 controls seeking routine dental care. Both patients and controls were consecutive referrals to the clinic occurring over a three year period. The mean age of the CMD group was 38 years (range 28-42), and the mean ...

Using a double-blind and randomized experimental design, ten adult subjects with sleep bruxism were administered amitriptyline (25 mg/night) and placebo (25 mg/night), each compound over a period of one week. Neither the intensities and locations of pains nor the nocturnal masseteric electromyographic activities were significantly affected by the tricyclic antidepressant. In fact, intake of amitriptyline was unpredictably associated with either an increase or a decrease in masseteric electromyographic activity (µV.s/min of ...

The tangent law explained the sagittal organization of the mandibular teeth by geometrical analyses. According to this concept, the long axis of all mandibular teeth must converge at one point in the circle of the “curve of Spee”, and this point is diametrically opposed to the condylar point. A cephalometric analysis of 470 patients was the basis for this statistical study of the radius of the curve of Spee. The mean radius was approximately ...

When mandibular dentures are fabricated, marginal sealing should be taken into consideration for the stability of the denture. We selected specimens of the medial pterygoid muscle showing insertion of an independent small muscle bundle at its insertion site, and evaluated the anatomical relationship between the morphology of the insertion site and the denture. The insertion of the pterygoid muscle was classified according to the insertion morphology of the independent small muscle bundle into three types ...

The pain-relieving effect of indomethacin phonophoresis on temporomandibular (TMJ) joint pain was evaluated in a double-blind, placebo-controlled clinical trial. Twenty subjects, who have TMJ pain, were included for this study and randomly assigned to either the experimental group (n = 10) or the control group (n = 10). Each treatment consisted of the application of ultrasound massage (1.0 MHz, 0.8 to 1.5 W/cm2 continuous output) for 15 minutes to the painful temporomandibular joint ...

No abstract available.