PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “MOUTH PROTECTORS”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

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

At least 433 records · Page 24Linked to original sources
PubMed1992

Effect of slow-release chlorhexidine mouthguards on the levels of selected salivary bacteria.

This study evaluated the effect of an alternate delivery system for chlorhexidine on salivary levels of mutans streptococci (MS) and other selected oral bacteria. On the basis of salivary MS levels > or = 10(4) CFU/ml, 22 subjects were enrolled. All caries lesions were restored prior to treatment. Two pretreatment paraffin-stimulated saliva samples were obtained for culturing at least 1 week apart. Complete-arch vacuum-adapted mouthguards were individually fabricated and coated internally with a 3% w/v chlorhexidine varnish. Mouthguards were worn for an average of 7 h/night for 7 nights. Saliva samples were obtained immediately after treatment and 1 and 3 months later. There was no significant change in levels of any of the monitored bacteria between the two pretreatment samples. A significant and specific reduction in salivary MS levels was observed in the three after-treatment samples as compared with baseline values (p < 0.001, p < 0.001, p < 0.05, respectively). The levels of Actinomyces viscosus were also measured, and there was a significant reduction immediately after treatment (p < 0.05), a return to baseline values at 1 month, and a significant increase above baseline values at 3 months, (p < 0.001). There was no significant change in saliva volume, in total numbers of facultatively anaerobic bacteria, or in levels of lactobacilli or Streptococcus sanguis. This treatment system is capable of significant and specific suppression of MS levels for up to 3 months without retreatment.

Actinomyces viscosus↗
PubMed1996

Effect of repeated treatment with sustained-release chlorhexidine mouth guards on salivary levels of mutans streptococci.

The effect of multiple treatments with chlorhexidine mouth guards on salivary levels of mutans streptococci (MS) was studied. Eleven subjects with salivary MS > or = 10(5) CFU/ml were randomly assigned to an experimental or control group. Complete-arch mouth guards were coated internally with one of two ethylcellulose varnishes, one containing 30% dry w/w chlorhexidine and one containing no chlorhexidine. Subjects wore the mouth guards up to four times, each time for 7 consecutive nights while sleeping, with at least a 1-week break between treatment weeks. Subjects in the control group subsequently crossed over and also wore the chlorhexidine-containing mouth guards. Each of the week-long mouth guard sessions resulted in a reduction in mean salivary MS levels as follows (log10 CFU/ml): for the experimental group, -1.0, -0.9, -1.0 and -1.2, and for the crossover group, -1.7, -0.6, -0.5 and -0.6. Salivary MS levels were (mean +/- SD) 6.4 +/- 0.5 at baseline and 3.8 +/- 0.5 after the last mouth guard session for the experimental group and 6.0 +/- 0.5 and 4.3 +/- 0.7, respectively, for the crossover group. For the control group, there was no significant change in MS levels.

Adult↗
PubMed1995

Effect of mouthpiece breathing on cardiorespiratory response to intense exercise.

Use of mouthpiece and noseclips after breathing pattern at rest and during moderate exercise. Our purpose was to extend observations on mouthpiece breathing to its effects on the cardiorespiratory response to intense exercise and to develop and validate an algorithm for computer-assisted analysis of breathing pattern recorded with respiratory inductive plethysmography. Six normal men performed incremental bicycle exercise to volitional exhaustion on two occasions with and without mouthpiece and noseclip. ECG and breathing pattern recorded with a respiratory inductive plethysmograph were analyzed manually and with computer assistance. Mouthpiece breathing increased tidal volume and respiratory cycle time by up to 63 and 33% respectively (p < 0.02) during mild exercise, but it did not alter performance, heart rate, or breathing pattern at maximal exercise. Mean differences between inductive plethysmographic and spirometric tidal volumes were < 5% during validation at rest and maximal exercise. Application of the proposed algorithm for semiautomatic breathing pattern analysis provided significant time savings with no loss in precision compared with manual analysis. In conclusion, in normal men, performance and breathing pattern during maximal exercise are not altered by a mouthpiece and noseclip, and accurate computer-assisted measurement of ventilation from external transducers may be performed even during intense exercise.

Adult↗
PubMedDate not supplied

Prostate brachytherapy with iodine-125 seeds: radiation protection issues.

AIMS AND BACKGROUND: Brachytherapy for prostate cancer by means of permanently implanted 125I sources is a well established procedure. An increasing number of patients all over the world are treated with this modality. When the technique was introduced at our institution, radiation protection issues relative to this technique were investigated in order to comply with international recommendations and national regulations. Particular attention was paid to the need for patient shielding after discharge from hospital. METHODS: The effective and equivalent doses to personnel related to implantation, the effective dose to patient relatives as computed by a developed algorithm, the air kerma strength values for the radioactive sources certified by the manufacturer compared with those measured by a well chamber, and the effectiveness of lead gloves in shielding the hands were evaluated. RESULTS: The effective dose to the bodies of personnel protected by a lead apron proved to be negligible. The mean equivalent doses to the physician's hands was 420 microSv for one implant; the technician's hands received 65 microSv. The mean air kerma rate measured at the anterior skin surface of the patient who had received an implant was 55 microGy/h (range, 10-115) and was negligible with lead protection. The measured and certified air kerma strength for125I seeds in RAPID Strand corresponded within a margin of +/- 5%. The measured attenuation by lead gloves in operative conditions was about 80%. We also defined the recommendations to be given to the patient at discharge. CONCLUSIONS: The exposure risks related to brachytherapy with 125I to operators and public are limited. However, alternation of operators should be considered to minimize exposure. Patient-related measurements should verify the dose rate around the patient to evaluate the need for shielding and to define appropriate radiation protection recommendations.

Adenocarcinoma↗
PubMedDate not supplied

A comparison of athletic mouthguard materials.

The development of protective mouthguards resulted from extensive injuries during participation in contact sports. This has produced a dramatic decrease in the incidence of injuries to the orofacial complex. Numerous materials and techniques have been used for mouthguard fabrication. The purpose of this investigation was to make an in vivo comparison of various thermoplastic mouthguard materials. Mouthguards were fabricated upon maxillary models of 40 members of the UCLA football team. The mouthguards were made of the following materials: poly (vinyl acetate-ethylene) copolymer clear thermoplastic; polyurethane; and laminated thermoplastic. Eleven measurements were taken for each mouthguard to demonstrate dimensional changes that occurred with wear. Statistical analyses determined differences between the types of mouthguards. The clear thermoplastic revealed less dimensional change than the polyurethane material. The laminated thermoplastic showed significantly less dimensional change than the other materials tested.

Football↗
PubMedDate not supplied

Players' attitudes to mouthguards and prevalence of orofacial injuries in the 1987 U.S. Rugby Football Team.

This report shows that although 95.4% of players in the U.S. Rugby Team believed mouthguards provided local protection, only half wore a mouthguard. However, 90.9% of mouthguard wearers would not play without their mouthguard and 54.5% believed wearing mouthguards should be made compulsory in rugby football. Approximately one-third of the team had sustained an orofacial injury that required treatment and none were wearing a mouthguard at the time of injury. These and other results are compared to an identical study of the 1984 Australian Rugby Team, the only previous such study reported.

Adult↗
PubMed2004

A paralleling device and ethylene vinyl acetate baffles for use with mandibular distraction osteogenesis: technical note.

A novel method for planning the placement of intra-oral lengthening devices using a paralleling device is described and illustrated with a case report. Simple radiographic measurements and study models are all that is required to construct a simple acrylic splint with guides, which allows accurate positioning of the distractors at surgery. The construction of ethylene vinyl acetate (EVA) baffles to prevent trauma to the labial mucosa from the intra-oral link arms is a technique that enhances patient comfort during distraction of the mandible. The case report demonstrates the application of the surgical planning technique and the use of EVA baffles for a patient with an overjet of 21.5 mm.

Acrylic Resins↗
PubMed1987

An investigation of the features of the pre-term infant palate and the effect of prolonged orotracheal intubation with and without protective appliances.

The features of premature low birth weight infant palates were examined. Babies of less than 32 weeks gestation at birth were compared with 30 who had required orotracheal intubation for ten or more days. By random selection half of these babies were fitted with a protective supporting appliance during the intubation phase. Prolonged orotracheal intubation was shown to be associated with narrowing, deepening and some anterior elongation of the developing palate. The protective appliance was shown to reduce the extent of these changes and provided an additional means of orotracheal tube support.

Cephalometry↗
PubMed1990

Underwater orthodontics.

A report is presented of a scuba diver who was unable to dive using a normal commercial mouthpiece due to wearing a fixed orthodontic appliance. The situation was resolved with the provision of a customized mouthpiece of simple design and manufacture.

Adolescent↗