Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Temporal Muscle”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 739 records · Page 41Linked to original sources
PubMed1998

Direct anastomotic bypass for cerebrovascular moyamoya disease.

Therapeutic result and pitfalls in the surgical treatment of cerebrovascular moyamoya disease are evaluated. During the recent 15 years, 268 patients with moyamoya disease have been treated in our clinic. Among them, 238 patients showed ischemic symptoms. Superficial temporal artery to middle cerebral artery anastomoses combined with temporal muscle grafting (encephalo-myo-synangiosis) were performed for most of the cases. Complete remission and clinical improvement were obtained in 34.0% and 64.2% of the patients, respectively. Symptomatic aggravation due to ischemic complication followed the operation in five patients (1.9%). Normocapnic control during general anesthesia with sufficient hydration is essential to avoid perioperative ischemic complications. Omental graft was performed in 16 patients. In 13 patients, omental graft was performed for the progressing ischemia in the posterior cerebral artery or anterior cerebral artery distribution. In the other three patients, omental graft was used for marked brain atrophy.

Anastomosis, Surgical↗
PubMed1989

[Case of the maxillofacial defect patient. Prosthetic treatment after reconstruction of the palate and face using deltopectral flap].

The patient, a 72-year-old edentulous man, had an extensive maxillofacial defect caused by treatment of the maxillary cartinoma. As his left maxillary and zygomatic bone, a portion of the soft palate, orbital cavity contents and soft tissues of the cheek had been excised, his face was ugly, and his speech and eating were extremely poor. For this patient, first of all, plastic surgeons reconstructed the cheek and palate using deltopectral flap. Secondly, dentists prepared a facial prosthesis and a set of complete dentures. Four months after prosthetic treatment, plastic surgeons corrected the left corner of the mouth using temporal muscle flap and fascia lata, and strengthened infraorbial region of deltopectral flap by grafting the left 5th rib. Lastly, dentists remade the facial prosthesis. As a result, the patient had great improvement in his face, speech and eating. Periodic examination of the surgical site can be practiced through the remaining facial defect. The advantages of the surgical reconstruction in this case were as follows. (1) As reconstruction of the cheek narrowed a facial defect, it was easy to improve patient's appearance by a small facial prosthesis. (2) The closure of the palate was effective to improve hypernasal speech, to prevent fluid leakage into the nasal cavity and to improve the retention and stability of the upper complete denture.

Aged↗
PubMed1989

[Electromyographic study on masticatory function of the telescope denture wearers in the Kennedy Class II mandible].

Masticatory function of 10 telescope denture wearers in the Kennedy class II mandible patients was evaluated with electromyography. Electromyographic activity during mastication with kamaboko and peeled raw carrot was recorded from bilateral masseter and the anterior part of temporal muscles at each interval: Before treatment, immediately after denture insertion and 2, 4, 6, 8 weeks after respectively. Mean of duration, interval and cycle of EMG activities, coefficient of variation and average variation were calculated. The results were as follows: 1. Means of duration and cycle times decreased immediately to 2 weeks after denture insertion. 2. EMG activities during raw carrot chewing became regular immediately to 2 weeks after denture insertion, and within 4 weeks in kamaboko chewing. These results suggest that telescope dentures would be adapted to stomatognathic system within short period after denture insertion.

Denture, Overlay↗
PubMed2005

[Electroencephalogram evaluation of denture tolerance with different design of upper major connector].

PURPOSE: This study investigated the possibility of objectively evaluating denture tolerance with different designs of upper major connector through electroencephalographic examination. METHODS: Nine healthy dentate subjects wore five designs of palatal plates (All palatal type, Anterior palatal type, Horseshoe type, Palatal bar type, and Palatal strap type). Electromyograms (EMG) from the masseter and the posterior temporal muscles during mastication and electroencephalograms (EEG) before and after mastication were simultaneously recorded and analyzed. In addition to evaluation by visual analogue scale (VAS), questionnaire surveys consisting of five comfort parameters were also done. RESULTS: VAS values showed uncomfortable feeling for all questions on wearing each type of palatal plate, particularly the Total palatal type, Horseshoe type, and Palatal strap type. There were no significant differences between control and all palatal plates in EMG evaluations. After mastication, %alpha in EEG decreased and %beta increased, both significantly, compared with those before mastication. The slope of 1/f fluctuation in alpha-wave increased after mastication significantly. The variation of EEG (%alpha, %beta and 1/f fluctuation in alpha-wave) before and after mastication were similar to the results of VAS value. CONCLUSIONS: Denture tolerance with different design of upper major connector influenced the higher center of the brain and suggested that the possibility of detecting changes might be indicated electroencephalographically.

Adult↗
PubMed1991

On the facial artery of the raccoon dog (Nyctereutes procyonoides viverrinus Temminck).

Detailed observations were made of the facial artery in 20 raccoon dogs (Nyctereutes procyonoides viverrinus Temminck) utilizing the plastic injection method. The findings obtained were discussed in comparison with the facial artery of carnivorae. The facial artery diverged anterolaterally from the external carotid artery independently at a position between the origins of the lingual and the posterior auricular arteries when the external carotid bent laterally in front of the tympanic bulla. This artery, immediately after giving off the styloglossal branch, passed forwards superomedial to the digastricus muscle and medial to the insertion of the pterygoideus medialis muscle up to the posterolateral end of the mylohyoideus muscle, where the submental artery was derived. The submental ran forwards, giving off the digastric, the mylohyoid, the sublingual and the cutaneous branches, down to the posterolateral end of the intermandibular symphysis, where it anastomosed with the opposite fellow. The facial artery bent inferolaterally and passed laterally giving off the pterygoid and the inferior masseteric branches, and then emerged out onto the face through the facial vascular notch located inferoanterior to the angular process, which was extremely well developed in this species. The main stream of the artery ran anterosuperiorly at about 40 degrees to the horizontal plane along the anterior margin of the masseter muscle, since the notch was located on a projected level posterior to the middle of the zygomatic arch, giving rise en route to the anterior masseteric, the mandibular marginal, the buccal and the cutaneous branches. The artery finally divided into the inferior and superior labial arteries at the inferior margin of the mandibular origin of the buccalis muscle in the angle of the mouth. The facial artery of the raccoon dog was thus similar in its origin to that in the dog, cat and lion, but notably different in the short course of its submandibular region, and the nearly horizontal passage of the main route in the face, without the mandibular glandular branch. Additionally an extremely well developed angular process, a submandibular lobe and fairly posterior position of the vascular notch were found.

Animals↗
PubMed1995

Outcome of 6-week treatment with transcutaneous electric nerve stimulation compared with splint on symptomatic temporomandibular joint disk displacement without reduction.

The aim of the present study was to compare the effect of transcutaneous electric nerve stimulation (TENS) with the flat occlusal splint in the treatment of temporomandibular joint (TMJ) disk displacement without reduction. Thirty-one patients were included and randomly selected to be treated 6 weeks with either TENS (90 Hz, 30 min, three times/day) or with a flat occlusal splint (24 h/day. Those selected for the TENS group had one electrode placed over the painful TMJ and another electrode over the anterior temporal muscle. The splint group used a conventional flat occlusal splint with cuspid guidance. Both treatment groups visited the clinic once a week. Symptoms and signs were registered before and after treatment. The intensity of pain was recorded with a visual analogue scale (VAS) and with an electronic pocket-sized recorder (Pain-Track) carried 1 week before and also the last week of treatment for continuous registration of pain. Measured with the VAS, half of the patients treated with splints became pain-free or their TMJ pain improved at least 50% both at rest and with jaw function compared with only 6% in the TENS-treated group. With regard to strictly chewing pain, the VAS-registered pain improved in two-thirds of the splint group, compared with 50% of the TENS group. With the Pain-Track device it was found that in most individuals pain was aggrevated at mealtimes. The conclusion was that flat occlusal splints in several respects are better than TENS in the treatment of symptoms associated with TMJ disk displacement without reduction.

Adolescent↗
PubMed1998

Long-term outcome after STA-MCA anastomosis for moyamoya disease.

A long-term assessment was performed to determine the posttreatment clinical course of 113 patients with moyamoya disease. All patients sustained cerebral ischemic attacks and underwent superficial temporal artery-middle cerebral artery anastomosis with or without temporal muscle grafting. The follow-up duration was 3 to 24 years (mean 14.4 +/- 5.8 [standard deviation]). Complete cessation of the ischemic episodes was obtained in 110 of 113 patients. One hundred patients were able to return to independent acitvities of daily living. Intellectual delays prevented 24 patients from engaging in an independent social life . Although intracranial bleeding is one of the common manifestations in moyamoya disease, hemorrhage was not detected in the 113 patients who underwent cerebral revascularization.

Journal Article↗
PubMed1980

Atypical fibrous histiocytoma in the skull of an infant. Case report.

This is a report of an atypical fibrous histiocytoma in the skull of an infant, who at the age of 3 months was noted to have a "lump" beneath the scalp in the right parietal region. It was about 2 cm in diameter, and the scalp was movable over it. Physical examination was otherwise normal. Radiographs showed erosion of the scalp deep on the palpable mass. At operation a neoplasm was found, which had destroyed the bone and invaded the adjacent temporal muscle and dura mater. The tumor was removed en bloc after the surrounding bone had been excised. Histological examination using light and electron microscopy revealed the tumor to be an atypical fibrous histiocytoma. Radiation therapy was not given. There has been no recurrence for 7 years.

Histiocytoma, Benign Fibrous↗
PubMed1981

Recurrent retinal ischemia beyond cervical carotid occlusions: clinical-angiographic correlations and therapeutic implications.

Seventeen patients with persistent amaurosis fugax ipsilateral to angiographically documented internal carotid artery (ICA) occlusions in the neck have been treated by the authors over the past 5 years. Complete cerebral arteriography in each case demonstrated that the symptomatic ophthalmic artery was perfused exclusively by the ipsilateral external carotid artery (ECA), which invariably had an obstructive and/or ulcerative lesion and its origin, and/or an adjacent residual "stump" of the occluded ICA. In nine patients, retinal artery branch emboli were visible on funduscopy. One patient had angiographic evidence of intracranial embolization via the ophthalmic artery from the ECA. Although ipsilateral superficial temporal-muscle cerebral artery anastomosis in one patient, and endarterectomy of a contralateral carotid stenosis in another patient, failed to relieve symptoms, endarterectomy of the ECA with resection of the "stump" of the occluded ICA effectively terminated symptoms in 10 of 11 patients. Anticoagulant drug therapy promptly abolished symptoms in four nonsurgical patients as well as in two patients with failed operations. It is concluded that recurrent retinal ischemia beyond cervical carotid occlusions frequently results from microembolism via the ipsilateral ECA. Patients with this mechanism of postocclusion recurrent ischemia can be identified on the basis of clinical history, ophthalmological examinations, and complete cerebral arteriography. Termination of embolic phenomena should be the major treatment goal in these individuals, and ECA endarterectomy is recommended. Anticoagulant drugs are an effective alternative treatment in patients who are poor surgical risks.

Adult↗
PubMed1999

Surgical decompression for traumatic brain swelling: indications and results.

OBJECT: Decompressive craniectomy has been performed since 1977 in patients with traumatic brain injury. The authors assess the efficacy of this treatment and the indications for its use. METHODS: The clinical status of the 57 patients, their computerized tomography (CT) scans, and intracranial pressure (ICP) levels were documented prospectively in a standard protocol. At the beginning of the study, all patients older than 30 years were excluded. As of 1989 patients older than 40 years were excluded until 1991; since that time patients older than 50 years have been excluded. Primary brain or brainstem injury with fully developed bulbar brain syndrome, loss of auditory evoked potentials (AEPs), and/or oscillation flow in a transcranial Doppler ultrasound examination were contraindications to decompressive craniectomy. A positive indication for decompression was given in the case of progressive therapy-resistant intracranial hypertension in correlation with clinical (Glasgow Coma Scale [GCS] score, decerebrate posturing, dilating of pupils) and electrophysiological (electroencephalography, somatosensory evoked potentials, and AEPs) parameters and with findings on CT scans. Unilateral decompressive craniectomy was performed in 31 patients and bilateral craniectomy in 26 patients. In all cases, a wide frontotemporoparietal craniectomy was followed by a dura enlargement covered with temporal muscle fascia. The outcomes of the treatment were surprisingly good. Only 11 patients (19%) died, three of whom died of acute respiratory disease syndrome. Five patients (9%) survived, but remained in a persistent vegetative state; six patients (11%) survived with a severe permanent neurological deficit, and 33 patients (58%) attained social rehabilitation. Two patients (3.5%) did not have a follow-up examination. The GCS score on the 1st day posttrauma and the mean ICP turned out to be the best predictors for a good prognosis. The results demonstrate the importance of decompressive craniectomy in the treatment of traumatic brain swelling. CONCLUSIONS: Surgical decompression should be routinely performed when indicated before irreversible ischemic brain damage occurs.

Adolescent↗
PubMed2000

A newly designed key-hole button.

Patients who have undergone frontotemporal craniotomy occasionally complain of scalp deformity in the anterior temporal area. This occurs as a result of inappropriate reconstruction of the temporal muscle and repair of the bone defect at the key hole and surrounding skull. Although several methods have been developed to prevent skin indentation on burr holes located over the convexity, satisfactory cosmetic repair of the key hole remains difficult because of its complicated bone curvature. To prevent such postoperative deformity, the authors designed a button made of hydroxyapatite ceramics to fit the key hole easily. This new, biocompatible "key-hole button" is shaped to alleviate the deformity of the temple by filling the bone defect in a more natural way. The specifications of this device and its clinical application are described.

Biocompatible Materials↗
PubMed1997

[A case report of bilateral perilymph fistula in an adult, with literature review].

Adult bilateral perilymph fistula (PLF) is rare. We report a case of a 55-year-old man who suffered from sudden bilateral hearing loss after blowing his nose. On the first day, he also had bilateral tinnitus but no vertigo. However, he gradually developed vertigo, and nystagmus to the left side began to appear in the following days. Exploratory bilateral tympanotomies were performed and perilymph fistulas were observed at the round window niche in both ears. The round windows were obliterated with fascia of the temporal muscles. After the operation no changes were found in both sides on a pure tone audiogram even at a one-year follow-up. The literature was reviewed and several features were statistically analyzed. In the adult bilateral PLF group, the proportion of the cases in which the cause of PLF was clear was significantly higher than that in the adult unilateral PLF group, but the other clinical features were almost the same. The results suggest that in adults the occurrence of bilateral and unilateral PLF could depend on the level of pressure applied to the middle or inner ear. On the other hand, in the child PLF group, the ratio of bilateral involvement was considerably higher than that in the adult PLF group, and in most cases the PLF was associated with middle and/or inner ear malformations. Healing in the child bilateral PLF group was poor than that in the adult PLF group. Those results suggest that the etiology of bilateral PLF in children may be considerably different from that of adult PLF.

Age Factors↗
PubMedDate not supplied

Correlation of clinical and MRI findings of tempero-mandibular joint internal derangement.

The most common clinical features of tempero-mandibular joint internal derangement are correlated with the MRI findings of shape of the disc in an attempt to find the etiology of tempero-mandibular joint internal derangement. In this study, the clinical parameters of pain, muscle tenderness, clicking with in the joint (like early, middle and late) are correlated with the MRI findings of disc shapes. (like biconcave, thick, lengthened, folded, adhesion). The study reveals any trauma that leads to muscle tenderness results in internal derangement of tempero-mandibular joint.

Facial Pain↗
PubMed1992

[Effects of difference of occlusal splint contacts on masticatory system].

The short-term effects of the difference of occlusal splint contacts on the jaw function were investigated on five healthy subjects. The maxillary stabilization splint (S-type) was fabricated and sectioned into three parts: an anterior section (A-type) and two posterior sections (P-type). These 3 types of splints were used for 10 days for each subject. The EMG activity of the masseter and the anterior and the posterior temporal muscles were measured during the maximum clenching in the intercuspal position and on the wearing splint. Subsequently on the bite force-measuring device with two transducers the bite and the EMG activity were measured during the maximum clenching, and the intercuspal occlusal contacts were recorded. The results were as follows: 1. After wearing the P-type, the total EMG activity during clenching in the intercuspal position was decreased, then increased after removal. 2. After wearing the S-type and the A-type the anteroposterior distribution of the bite force during clenching was changed, then returned after removal. 3. After wearing the A-type, the occlusal contact area of the anterior teeth in the intercuspal position was decreased, then increased after removal, while after wearing the S-type and the P-type that of the posterior teeth was decreased, then increased after removal.

Adult↗