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At least 37 records · Page 2Linked to original sources
PubMed1984

Late infantile autosomal recessive myotonia, mental retardation, and skeletal abnormalities: a new autosomal recessive syndrome.

Four sibs of non-consanguineous parents who had myotonia from late infancy are described. Mild to moderate mental retardation, severe bone abnormalities of the vertebral column (mainly in the thoracolumbar region), and short stature were also observed. Autosomal recessive inheritance is demonstrated. These cases are compared with reported cases of the Schwartz-Jampel syndrome.

Adolescent↗
PubMed1995

The myotubular myopathies: differential diagnosis of the X linked recessive, autosomal dominant, and autosomal recessive forms and present state of DNA studies.

Clinical differences exist between the three forms of myotubular myopathy. They differ regarding age at onset, severity of the disease, and prognosis, and also regarding some of the clinical characteristics. The autosomal dominant form mostly has a later onset and milder course than the X linked form, and the autosomal recessive form is intermediate in both respects. These differences are, however, quantitative rather than qualitative. Muscle biopsy studies of family members are useful in some cases, and immunohistochemical staining of desmin and vimentin may help distinguish between the X linked and autosomal forms. Determining the mode of inheritance and prognosis in individual families, especially those with a single male patient, still poses a problem. Current molecular genetic results indicate that the gene for the X linked form is located in the proximal Xq28 region. Further molecular genetic studies are needed to examine the existence of genetic heterogeneity in myotubular myopathy and to facilitate diagnosis.

DNA↗
PubMed2000

Treatment of multiple recession-type defects in patients with esthetic demands.

BACKGROUND: When multiple recession defects affecting adjacent teeth in esthetic areas of the mouth are present, patient-related considerations suggest the selection of surgical techniques that allow all gingival defects to be simultaneously corrected with the soft tissue close to the defects themselves. The aim of the present study was to evaluate, with respect to root coverage, the effectiveness of a new surgical approach to the coronally advanced flap procedure for the treatment of multiple recession defects in patients with esthetic demands. METHODS: Twenty-two young systemically and periodontally healthy subjects with at least 2 recession-type defects affecting adjacent teeth in esthetic areas of the mouth were enrolled in the study. All recessions were Miller Class I or II. In each patient, all present recessions were treated at the same time with a modification of the coronally advanced flap technique. The clinical re-evaluation was made 1 year after the surgery. RESULTS: A total of 73 recessions (mean recession depth 2.8 mm) were treated; mean number of gingival recessions in each subject was 3.4. At the 1-year examination, on average, 97% of the root surface was covered with soft tissue and 64 defects (88%) showed complete root coverage. Complete root coverage in all recessions was achieved in 16 out of 22 patients (73%), and no statistically significant relationship was found between the root coverage results and the number of recession defects treated in each patient. A statistically significant increase of keratinized tissue (0.6 mm) was observed after 1 year; this increase was inversely correlated (P <0.001) with the amount of presurgical keratinized tissue. The multiple regression model showed that the final result, in terms of root coverage, was significantly affected by the initial recession depth and by the amount of presurgical keratinized tissue. Greater reductions in recession depth were observed in the cases with worse initial conditions and with lesser amount of keratinized tissue apical to the recession defect. CONCLUSIONS: The results of the present study demonstrated that the proposed surgical technique was very effective for the treatment of multiple gingival recessions affecting teeth in esthetic areas of the mouth and that these successful root coverage results could be achieved irrespective to both the number of recessions simultaneously treated during the surgical intervention and the presence, before surgery, of a minimal amount of keratinized tissue apical to the defects.

Adolescent↗
PubMed2001

Evaluation of gingival recession in left- and right-handed adults.

Recession is the exposure of the root surface by an apical shift in the position of the gingiva. Several factors have been implicated in the etiology of gingival recession. The aim of this study was to assess the relationship between gingival recession and the hand, right or left, duration, frequency, and technique of tooth brushing in left- and right-handed adults in Erzurum, Turkey. Fifty five left-handed (35 female and 20 male) and 55 right-handed (35 female and 25 male) subjects were included in the study. The left and right hand positions of the subjects were determined by using Oldfield's Edinburg Inventory Index, and they were divided into two groups as left-handed and right-handed. The amount of gingival recession and localization, oral hygiene situations, gingival bleeding, toothbrushing duration, frequency, and techniques of subjects were evaluated. The relationship between the amount of gingival recession and localization and the subjects' hand, duration, frequency and technique of tooth brushing were examined. The data were evaluated with variance analysis and student's t test. The oral hygiene situations in right- and left-handed subjects were determined. On comparing the left-handed subjects with the right-handed ones, it was observed that the left-handed subjects had better oral hygiene than the right-handed. But, this case was not statistically significant (p > .05). In both right-handed and left-handed subjects, women had better oral hygiene than men (p < .01). The rate of gingival recession was found more in the left-handed than in the right-handed (p < .05). In the right-handed subjects, gingival recession was found in the premolar and canine regions of upper right and lower right jaw. A similar result was also observed in the left-handed subjects, because gingival recession was seen on their upper left and lower left jaw. Incisive teeth were affected at the same rate in the left-handed and right-handed. The gingival recession was seen more in maxillary jaw than in mandibular jaw in both groups. A statistically significant relationship between gingival recession and frequency duration, and technique of tooth brushing was found. While the greatest amount of gingival recession was found in horizontal scrub technique, gingival recession increased with increasing tooth brushing duration and frequency. The relationship between gingival recession and hand using in tooth brushing was determined.

Adult↗
PubMed2001

Analysis of the suprabullar and retrobullar recesses for endoscopic sinus surgery.

Presently, the basic structures and spaces of the paranasal sinuses are more clearly understood by otolaryngologists than ever before. Yet, the more subtle and complex ethmoid features, especially of the ethmoidal pre-recesses and recesses, still elude many otolaryngologists. One of the most nebulous, elusive, and difficult-to-understand recesses is the sinus lateralis, or as it is more correctly called, the retrobullar and suprabullar recesses. The primary purpose of this investigation was to ascertain the prevalence of the sinus lateralis in humans. The secondary purpose was to better characterize this subtle feature of ethmoid anatomy. Human cadaver sinonasal complexes were meticulously dissected by both gross and endoscopic techniques. The hiatus semilunaris superior and sinus lateralis were present in all specimens. A separate and discrete retrobullar recess was present in 93.8%. Typically, a crestlike projection from the basal lamella to the lamina papyracea was noted within the posterior aspect of the retrobullar recess. A single, discrete, well-developed suprabullar recess was present in 70.9%, and a rudimentary suprabullar recess was present in 22.9%. In 7.2%, a single large cleft collectively excavated the retrobullar and suprabullar recess areas; separate retrobullar and suprabullar tracts were not present in this subgroup. Typically, the suprabullar recess was separate from and did not communicate with the frontal recess. The data from this investigation indicate that the separate terms retrobullar recess and suprabullar recess more accurately designate the anatomy and are recommended over the term sinus lateralis.

Cadaver↗
PubMed2003

The etiology and prevalence of gingival recession.

BACKGROUND: Gingival recession in its localized or generalized form is an undesirable condition resulting in root exposure. The result often is not esthetic and may lead to sensitivity and root caries. Exposed root surfaces also are prone to abrasion. The purpose of this article is to describe the prevalence, etiology and factors associated with gingival recession. TYPES OF STUDIES REVIEWED: The authors reviewed cross-sectional epidemiologic studies of gingival recession and found that they correlated the prevalence of recession to trauma, sex, malpositioned teeth, inflammation and tobacco consumption. The recent surveys they reviewed revealed that 88 percent of people 65 years of age and older and 50 percent of people 18 to 64 years of age have one or more sites with recession. The presence and extent of gingival recession also increased with age. RESULTS: More than 50 percent of the population has one or more sites with gingival recession of 1 mm or more. The prevalence of gingival recession was found in patients with both good and poor oral hygiene. It has been proposed that recession is multifactorial, with one type being associated with anatomical factors and another type with physiological or pathological factors. Recession has been found more frequently on buccal surfaces than on other aspects of the teeth. CLINICAL IMPLICATIONS: Dentists should be knowledgeable about the etiology, prevalence and associating factors of gingival recession, as well as treatment options, so that appropriate treatment modalities can be offered to patients. Treatments for gingival recession include gingival grafting, guided tissue regeneration and orthodontic therapy. Such treatments typically result in esthetic improvement, elimination of sensitivity and a decreased risk of developing root caries.

Adolescent↗
PubMed1999

Pericardial sinuses and recesses: findings at electrocardiographically triggered electron-beam CT.

PURPOSE: To evaluate the appearance of the pericardial sinuses and recesses at electrocardiographically triggered electron-beam computed tomography (CT). MATERIALS AND METHODS: Findings in 100 patients without known pericardial disease were reviewed. The patients underwent electron-beam CT of the heart because of suspected coronary arterial disease. Incremental electrocardiographically triggered images were obtained with a 100-msec exposure time and 1.5-mm section thickness after intravenous administration of contrast material. The appearance of the pericardial sinuses and recesses was determined. RESULTS: In each patient, at least one of the sinuses was visible at CT. The transverse and oblique sinuses (or one of their recesses) were depicted in 95 and 89 patients, respectively. The left pulmonic recess was depicted in 81 patients; inferior aortic recess, 80 patients; posterior pericardial recess, 67 patients; left pulmonic vein recess, 60 patients; right pulmonic recess, 51 patients; superior aortic recess, 47 patients; right pulmonic vein recess, 29 patients; and postcaval recess, 23 patients. CONCLUSION: Pericardial sinuses and recesses are frequently depicted on electrocardiographically triggered electron-beam CT images. Knowledge of their locations is helpful in the differentiation of normal pericardium from pericardial effusions and mediastinal processes such as lymph nodes.

Adult↗
PubMedDate not supplied

Comparison of hang-back and conventional recession surgery for horizontal strabismus.

PURPOSE: To compare the results of hang-back and conventional recession surgery. METHODS: This randomized, double-blind, matched clinical trial comprised 30 patients with esotropia and 24 with exotropia. All ocular examinations before and at least 1.5 months after surgery were performed by an orthoptist who was unaware of the method of recession. All surgeries were performed by the same surgeon. RESULTS: In patients with esotropia, deviation improved from 31+/-9 prism diopters (delta) preoperatively to 7+/-6 delta postoperatively for hang-back recession (n=15) and from 41+/-14 delta to 6+/-6 delta for conventional recession (n=15). Postoperative horizontal deviation was >10 delta in 40% of patients who underwent hang-back recession and 20% of patients who underwent conventional recession (P<.8). In patients with exotropia, deviation improved from 28.9+/-9 delta preoperatively to 0.5+/-11 delta postoperatively for hang-back recession (n=12) and from 29+/-8 delta to 6+/-6 delta for conventional recession (n=12). Postoperative horizontal deviation was >10 delta in 24% of patients who underwent hang-back recession and 17% of patients who underwent conventional recession (P<.2). Mean follow-up was 7 months. CONCLUSION: Hang-back recession is an alternative to conventional rectus muscle recession, especially in children who have smaller globes and patients with myopia or collagen vascular diseases.

Child↗
PubMed2004

Gingival recession: epidemiology and risk indicators in a representative urban Brazilian population.

BACKGROUND: Gingival recession is a common manifestation of periodontal disease, but it is also associated with other risk factors. A few studies have investigated the epidemiology and risk factors of this condition. This study describes the epidemiology of gingival recession in a representative, urban Brazilian population and assesses various risk indicators. METHODS: A representative sample of 1,460 subjects was selected using a multi-stage, probability, cluster sampling strategy. The subjects were interviewed using a structured questionnaire and had a full-mouth clinical examination in a mobile examination center. RESULTS: More than half (51.6%) and 22.0% of the individuals and 17.0% and 5.8% of teeth per individual showed gingival recession > or = 3 mm and > or = 5 mm, respectively. The prevalence, extent, and severity of recession correlated with age. Recession showed a nonlinear relationship with age, with 25 to 50 year olds showing the highest level of recession. Males aged > or = 30 years showed significantly higher prevalence and extent of gingival recession than females. The percentage of teeth with recession was significantly higher in the lower socioeconomic groups irrespective of age, and in subjects > or = 30 years of age with irregular dental care than in subjects with regular care. Using a multivariable model, cigarette smoking and presence of supragingival calculus were the factors most significantly associated with localized and generalized recession, whereas gender, dental visits, and socioeconomic status were not significant risk indicators. CONCLUSIONS: The high level of gingival recession in this Brazilian population may be primarily related to destructive periodontal disease and is significantly associated with a high level of supragingival dental calculus and cigarette smoking. Population-based programs aimed at the prevention of periodontal diseases may reduce the prevalence of severe gingival recession in this and similar populations.

Adolescent↗