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At least 343 records · Page 19Linked to original sources
PubMed2000

Evaluation of the effect of a stabilization splint on occlusal force in patients with masticatory muscle disorders.

The purpose of this study was to evaluate the effect of stabilization splint therapy on occlusal force in patients with masticatory muscle disorders (MD). Six female patients with myalgia or myofascial pain participated in this study. The occlusal points and load on the dental arch in maximum clenching was measured using the computerized system with Dental Prescale(R) before and after the use of the splint. There were no significant changes in the number of occlusal points, mean occlusal pressure, and asymmetry in occlusal balance between before and after the use of the splint. However, there were significant differences in the extent of the area of occlusion and in the integrated occlusal loads. The integrated occlusal load converged to the normal level with the use of the splint. From the results of this study, it is suggested that the use of the stabilization splint has the effect of normalizing the occlusal force.

Adolescent↗
PubMed2001

The short-term effect of stabilization-type splints on the local asymmetry of masseter muscle sites.

Patients with temporomandibular disorders (TMD) may present with a cluster of joint and muscle disorders characterized primarily by pain, joint sounds and irregular or deviating jaw function. Maxillary stabilization-type splints represent the best standard therapy, so the purpose of this study was to evaluate changes in local cross-sectional dimensions (LCSD) of masseter muscle sites associated with short-term application of 'splint therapy' using the diagnostic approach of high-resolution gray-scale ultrasonography. The study included 29 patients who had signs and symptoms of temporomandibular disorders. Ultrasonographic investigation was performed with a linear (B-scan) 7.5 MHz small-part transducer to visualize the antero-superior, antero-inferior, medio-superior, medio-inferior, postero-superior and postero-inferior sites of the masseter muscle. To assess local muscle asymmetry patterns and to evaluate the respective effect of occluding splints, the 'absolute asymmetry index (AAI)' was used, with the mean maximum muscle diameter of the respective right and left sides calculated from three consecutive measurements before and after splint therapy. Comparing the pre-treatment with the 2-month follow-up values revealed a significant decrease in the overall mean asymmetry indices at the anterior (P < 0.01), medial (P < 0.05) and posterior (P < 0.05) muscle sites. There was no significant change in LCSDs at the various muscle sites (P > 0.05). The results of this study suggest stabilization-type splints to be effective in reducing local muscle asymmetries. Further studies are warranted to evaluate muscle-site specific effects in patient and non-patient groups and to relate these effects to pre-treatment variables like bite force, preferred chewing side, facial morphology and occlusion.

Adult↗
PubMed2004

Evaluation of pulpal blood flow after tooth splinting of luxated permanent maxillary incisors.

Laser Doppler flowmetry (LDF) is a non-invasive method to assess pulpal blood flow (PBF). Dental injury has been associated with losses of pulpal sensibility. The purpose of this study was to assess whether LDF could be used to detect short- and long-term changes of PBF values of luxated permanent maxillary central incisors after repositioning and splinting. In 18 trauma patients, a single maxillary incisor treated by repositioning and splinting, and the respective contralateral homologous tooth were investigated by LDF to assess local PBF values. Perfusion units (PU) were taken in four sessions: on the day of splint removal, and 12, 24, and 36 weeks after splint removal. Analysis of the luxation type-related PBF measurements revealed intrusion type-related PBF values to be associated with a significant decrease in PBF values (P < 0.05), while lateral luxation and extrusion type-related PBF values showed no significant difference between the session-related values (P > 0.05). PBF measurements did not change over time for the contralateral incisors (P > 0.05). Teeth affected by an intrusion-type luxation injury remained unresponsive to sensitivity testing at follow up, while 3 (60%) developed grey discoloration of the crown. LDF may become useful in the detection of ischemic episodes of luxated maxillary central incisors after repositioning and splinting. Further studies are warranted to assess the validity of post-traumatic 'ischemic episodes' by comparing it to histological tooth pulp changes.

Adolescent↗
PubMedDate not supplied

An alternative splinting and rehabilitation protocol for metacarpophalangeal joint arthroplasty in patients with rheumatoid arthritis.

This prospective study was completed to establish results obtained using a static splinting regimen as an alternative to the dynamic extension splint. Fifteen patients with rheumatoid arthritis, who had undergone metacarpophalangeal (MCP) joint arthroplasties and a postoperative rehabilitation program of alternating MCP joint flexion and extension static splints, were assessed pre-operatively and reviewed postoperatively. Total active arc of MCP joint motion and ulnar deviation were measured, and an activities-of-daily-living questionnaire was completed by each patient at 19 months (mean) postoperatively. Mean total active arc of MCP joint motion showed statistical improvement from 21.6 degrees (range, 5 degrees-60 degrees) pre-operatively to 47.2 degrees (range, 15 degrees-84 degrees) postoperatively. The little finger gained the most improvement, with a 50.2 degree arc, showing that this regimen does not compromise flexion gains at this joint. Ulnar deviation improved from a mean of 30.4 degrees (range, 5 degrees-65 degrees) pre-operatively to 9.7 degrees (range, 0 degrees-30 degrees) postoperatively. These initial results reinforce the clinical impression that this alternating static splint regimen can be used as an effective alternative to the dynamic extension splint.

Activities of Daily Living↗
PubMed2000

Results after surgery for severe Dupuytren's contracture: does a dynamic extension splint influence outcome?

Seventy-six consecutive patients were operated on for advanced Dupuytren's contracture and the results evaluated after nine months with special reference to the use of a dynamic extension splint. The patients were separated into three groups: those in whom the splint was used according to our guidelines (n = 15); those in whom the splint was used, but inadequately (n = 15); and those who did not require splinting (n = 24). Our results nine months postoperatively were similar to those of other studies in showing that the fifth proximal interphalangeal joint constituted the greatest problem. Comparison of the three groups indicated that splinting the way we used it did not influence the natural course of the disease after operation.

Dupuytren Contracture↗
PubMed2003

Splint satisfaction in the treatment of traumatic radial nerve injuries.

Between the years 1986-2001, 135 patients who have had traumatic radial nerve injury, were supplied with dynamic wrist-hand orthoses (WHOs). The aim of this study is to examine the applied splints, considering aspects such as apperance, practicality of use, function, comfort and endurance. The author's assessments show that the biggest problem was due to the unaesthetic appearance of the finger extensor spring of the splints. For this reason, modification of these finger extensor outriggers has been attempted. Also, aspects of the splints such as the problems faced and regeneration of the nerve, have been considered and modifications made in order to eliminate any disfunction. This study reflects the reactions and satisfaction of 83 patients concerning the splints they have used. Conventional wire springs have been used in the splints of 71 patients, and 12 had modifications done on their outriggers. In terms of appearance, there were significant differences between modified outriggers and conventional outrigger (p < 0.05). Also, when the modified outriggers were compared in terms of appearance and durability, there was a statistically significant opinion in favour of them (p < 0.01).

Adolescent↗
PubMed1994

Influence of stabilization occlusal splint on craniocervical relationships. Part I: Cephalometric analysis.

This study was conducted in order to determine the effect of an occlusal splint on craniocervical relationships, in subjects with muscle spasms in the sternocleidomastoid and trapezius muscles. A full-arch maxillary stabilization occlusal splint was made for each of the 15 subjects. Two lateral craniocervical radiographs were taken for each subject, with and without an occlusal splint. Cephalometric analysis showed that the splint caused a significant extension of the head on the cervical spine. There was also a significant decrease in the cervical spine lordosis in the first, second and third cervical segment. These cervical changes could be a compensation mechanism caused by the extension of the cranium on the upper cervical spine. The change in the curvature implies that it is necessary to periodically evaluate the changes occurring in the craniocervical relationships after the occlusal splint has been inserted.

Adult↗
PubMed1994

Influence of stabilization occlusal splint on craniocervical relationships. Part II: Electromyographic analysis.

The aim of this study was to determine the effect of stabilization occlusal splints on electromyographic (EMG) activity of sternocleidomastoid and trapezius muscles in subjects with spasm in the mentioned muscles. A full-arch maxillary stabilization occlusal splint was made for each of the 15 subjects. In the sternocleidomastoid muscle, tonic and saliva swallowing EMG activity decreased significantly with the splint, whereas maximal clenching activity did not change. In the trapezius muscle, no significant changes were observed with the occlusal splint. The different pattern in both muscles during tonic and swallowing EMG activity with the splint is attributed to differences in the synaptic inputs to the respective motoneuron pools, suggesting that a differential modulation of the motor neuron pools may exist of both muscles, of peripheral and/or central origin.

Adult↗
PubMed1997

Effect of occlusal splint on masticatory movement in healthy individuals.

To investigate the effects of wearing an occlusal splint on masticatory movements in healthy individuals, twelve healthy individuals were examined. A full maxillary stabilization splint made of heat-cured acrylic resin was fabricated for, and worn by, each individual for 24 hours. Masticatory movement was measured before and after the 24-hour period using a 3-D mandibular movement analyzing system. While the duration of a masticatory cycle+ did not change, the occlusal time significantly decreased after use of the splint. The lateral displacement of the opening phase to the balancing-side area also decreased after use of the splint, showing a vertical pattern of the opening path. Measurement in more healthy individuals and patients should help clarify the therapeutic mechanism of the splint in the treatment of temporomandibular disorders.

Adult↗
PubMed1989

Effect of hand splints on stereotypic hand behavior of girls with Rett syndrome: a replication study.

The purposes of this study were to replicate a recent report of the positive effects of hand splinting on the stereotypic hand movement of children with Rett syndrome and to evaluate the generality of these results to a different setting. Two 5-year-old girls diagnosed with early Stage-III Rett syndrome were introduced to hand splints in accordance with the multiple-baseline design used in the Naganuma and Billingsley study. Splint wear ranged from 30 to 50 days for the two subjects. Data were analyzed as a percentage of time and as actual time in minutes. Unlike the previous study, in which a decrease in hand-wringing behavior was noted, neither subject in our study demonstrated a decrease in stereotypic hand behavior or a subsequent increase in independent feeding skills when wearing the splints. There was also no evidence of increased hand wringing following withdrawal of the splints. The differences in ages of the subjects and different functional levels (stages) may have been contributing factors to the conflicting results and should be considered in managing this group of children.

Child, Preschool↗
PubMed1989

Basic principles of splinting the hand.

This article presents the basic principles needed in the fabrication of static and dynamic splints. The principles are defined, and examples are used as illustrations. The biomechanics of dynamic splinting are described, with special attention given to low-profile dynamic splinting. Several low-profile dynamic splints are described, with current indications presented in case studies with supporting documentation for appropriate splinting protocols.

Adult↗
PubMedDate not supplied

Have you tried the sandwich splint? A method of preventing hand deformities in children.

The prevention of contractures of the burned hand is an arduous problem in the young pediatric burn patient. Difficulty in applying splints, along with the time-consuming fabrication of complex splints, led to the development of the "sandwich" splint. This easily produced splint provides a means of preventing and treating hand deformities in this patient age group. Positive results have been noted with the use of this splint in conjunction with the patient's usual active physical therapy program.

Burns↗
PubMedDate not supplied

Analysis of materials for splinting of the thermally injured patient.

Good results have been achieved in the treatment of patients with burns with new splinting materials and proper splinting techniques. This article focuses on the thermoplastic splinting materials Clinic and Spectrum (Northcoast Medical Inc., San Jose, Calif.) and the comparable thermoplastic products Polyform (Smith & Nephew Rolyan, Inc., Menomonee Falls, Wis.) and Orthoplast (Johnson & Johnson Orthopedics, New Brunswick, N.J.). Qualities such as self-bonding, recyclability, and rigidity were tested for these materials. Splint rigidity was measured by a calibrated hook scale and determined by the force per pound needed to bend the material 20 degrees. Spectrum and Clinic products were judged more economical and, we contend, they are therefore better choices for splinting the thermally injured patient.

Burns↗
PubMed2004

A prospective study to assess the outcome of steroid injections and wrist splinting for the treatment of carpal tunnel syndrome.

Surgery is the definitive treatment for carpal tunnel syndrome. Conservative treatments, such as wrist splinting and steroid injections, are also effective for the relief of carpal tunnel symptoms, but their use remains controversial because they only offer long-term relief in a minority of patients. A prospective study was performed to assess the role of steroid injections combined with wrist splinting for the management of carpal tunnel syndrome. A total of 73 patients with 99 affected hands were studied. Patients presenting with known medical causes or muscle wasting were excluded. Diagnosis was made clinically and electrodiagnostic studies were performed only when equivocal clinical signs were present. Each patient received up to three betamethasone injections into the carpal tunnel and wore a neutral-position wrist splint continuously for 9 weeks. After that period, symptomatic patients received an open carpal tunnel release, and those who remained asymptomatic were followed up regularly for at least 1 year. Patients who relapsed were scheduled for surgery. At a minimum follow-up of 1 year, seven patients (9.6 percent) with 10 affected hands (10.1 percent) remained asymptomatic. This group had a significantly shorter duration of symptoms (2.9 months versus 8.35 months; p = 0.039, Mann-Whitney test) and significantly less sensory change (40 percent versus 72 percent; p = 0.048, Fisher's exact test) at presentation when compared with the group who had surgery. It is concluded that steroid injections and wrist splinting are effective for relief of carpal tunnel syndrome symptoms but have a long-term effect in only 10 percent of patients. Symptom duration of less than 3 months and absence of sensory impairment at presentation were predictive of a lasting response to conservative treatment. It is suggested that selected patients (i.e., with no thenar wasting or obvious underlying cause) presenting with mild to moderate carpal tunnel syndrome receive either a single steroid injection or wear a wrist splint for 3 weeks. This will allow identification of the 10 percent of patients who respond well to conservative therapy and do not need surgery.

Betamethasone↗
PubMed1991

Influence of an occlusal splint on integrated electromyography of the masseter muscles.

In order to examine the effect of an occlusal splint on the integrated electromyography (EMG) of the masticatory muscles, EMG of bilateral masseter muscles of 23 patients with temporomandibular joint disturbance syndrome (TMJDS), with and without an occlusal splint, was measured and integrated on line during maximum clenching. It was found that the integrated myoelectrical value of the masseter muscle on the involved and non-involved side was reduced with the occlusal splint. The absolute difference between integrated myoelectrical values in the left and right masseter muscles was reduced with an occlusal splint, but the relative difference remained virtually unchanged. These results indicate that the occlusal splint can decrease masseter muscle activity and thus exert a therapeutic effect.

Adult↗
PubMed1995

Effects of occlusal splints on the asymmetry of masticatory muscle activity during maximal clenching.

The effects of stabilization splints on the electromyographic activity patterns of the masseter and anterior temporal muscles during maximal clenching in healthy subjects and subjects with different types of stomatognathic dysfunction syndrome were investigated. No marked effect of splints on the asymmetry of muscle activity during bilateral clenching was revealed immediately after splint insertion. During unilateral clenching in the intercuspal position (ICP), the relative asymmetry index (rAI) of the masseter muscles, detecting the imbalance of left and right muscular activity, was significantly increased. The use of splints suppressed the asymmetry of masseter muscle activity during unilateral clenching. This result suggests that the use of a splint is a method of suppressing clench-caused aggravation of stomatognathic dysfunction in the presence of an imbalance between left and right muscle activities.

Adult↗
PubMed1995

The temporal/masseter co-contraction: an electromyographic and clinical evaluation of short-term stabilization splint therapy in myogenous CMD patients.

The short-term effect (3-6 weeks) of the use of a stabilization splint was investigated in a group of 35 myogenous craniomandibular disorder patients. The patients were clinically examined and surface EMG recordings of the temporal and masseter muscles were made during clenching in the intercuspal position (ICP), immediately after the insertion of the splint (SSP), and after at least 3 weeks of splint treatment (SSP 3). With the use of the error variance of the activity index changes in EMG activity were investigated. Three groups of patients were then recognized. One group showed a decrease in temporal muscle activity during splint treatment. Another group did not show any significant change during splint treatment. The third group showed an increase of temporal muscle activity. In general, significant reductions in the amount of static pain were found. In the group with a significant reduction of temporal muscle activity (n = 15) there was a greater decrease in the amount of static pain (P < 0.05) than in the group (n = 4) with a significant increase of temporal muscle activity. The results may indicate that the temporal muscle plays an important role in the perception of static pain in the masticatory system.

Adolescent↗
PubMed2004

Formable acrylic treatment for ingrowing nail with gutter splint and sculptured nail.

BACKGROUND: The treatment of choice for an ingrowing nail has been surgical rather than nonsurgical. Yet, surgical treatments are far from successful, cause pain and patient apprehension, and leave disfigurement. Further, there is misunderstanding about the disease pathophysiology. OBJECTIVE: To demonstrate the benefits of a noninvasive method of treatment for an ingrowing nail using gutter splint and formable acrylics and to present a current understanding of the disease pathophysiology. METHODS: From a total of 541 cases of ingrowing nails treated, full follow-up data were obtained between January 1979 and March 2002. Formable acrylic treatments were carried out in 106 cases treated with acrylic-affixed gutter splint, 17 cases with sculptured nails, and 28 cases in which the two treatments were combined. These were then compared with 233 cases treated with adhesive tape-attached gutter splint and the remainder with other conservative modalities. RESULTS: Acrylic treatment with gutter splint and sculptured nail was found to be vastly superior to the other methods described, especially in the ability to firmly affix the gutter splint and sculptured nail for the extended period required for treatment. The treatment leads to a complete remission with almost instant alleviation of pain, with no disfigurement, while allowing for the resumption of daily activities. CONCLUSION: Conservative methods utilizing formable acrylics are highly beneficial in the treatment of an ingrowing nail and should be viewed as the first treatment option.

Acrylic Resins↗