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PubMedDate not supplied

Using soft splints in your dental practice.

A significant number of soft splints are fabricated by U.S. dentists every year. The efficacy of these splints is discussed, reported indications and contraindications are defined, and favorable and unfavorable characteristics reported by patients are presented. Maxillary and mandibular soft splint designs that have been found to be clinically acceptable are illustrated and an easy and rapid technique for adjusting and polishing a soft splint is proposed.

Bruxism↗
PubMed2000

Predictability of bimaxillary orthognathic surgery using "piggyback" intermediate splints.

Ten consecutive patients underwent bimaxillary surgery including segmental Le Fort I and bilateral sagittal split ramus osteotomies. All 10 patients were symmetric skeletal Class II malocclusion with an anterior open bite. Asymmetry cases were excluded. Dimensional changes depicted on the cephalometric prediction tracing were reproduced in the model surgery and then transferred to the patient during the operative procedure using a "piggyback" intermediate splint. All dimensional changes, except vertical, were transferred from the model surgery to the patient intraoperatively by using a "piggyback" intermediate splint. The accuracy of this transfer and final skeletal result was examined. All the data clearly showed that in no case was any discrepancy greater than 2 mm, which demonstrates the predictable results that can be achieved by using a "piggyback" intermediate splint in bimaxillary orthognathic surgery.

Cephalometry↗
PubMed1984

Maxillary traction splint: a cephalometric evaluation.

Orthodontists are particularly interested in knowing exactly what skeletal and dental changes are produced by headgear. With headgear and fixed appliances, part of the observed change is due to the headgear, part to the fixed appliances, and part to growth. Since the maxillary traction splint moves the teeth en masse, the dentoskeletal changes are due primarily to the headgear force. Selective mandibular dental changes can be produced by adjusting the mandibular occlusal contacts against the splint. In this study forty-seven patients with maxillary dentoalveolar protrusions and Class II, Division 1 malocclusions were treated with orthopedic headgear that attached to a full-coverage maxillary occlusal splint. Fifty-two patients were selected as a control for evaluation of growth changes versus treatment changes. Lateral cephalograms were taken before and after treatment, and the sagittal skeletal and dental changes were evaluated and quantified. The results of the investigation revealed (1) the establishment of a Class I posterior occlusion, (2) a significant overjet reduction, averaging 4.24 mm, (3) inhibition of vertical development of the maxilla and slight intrusion of the maxillary dentition, (4) overbite reduction by leveling of the mandibular dentition, (5) no indication that mandibular growth is accelerated, and (6) no significant increase in the mandibular plane angle. The maxillary traction splint is an effective means of correcting maxillary dentoalveolar protrusion in growing patients prior to fixed appliance therapy. The second phase of treatment with fixed appliances is necessary for individual tooth positioning and for detailing the occlusion.

Adolescent↗
PubMed1976

The effect of the bite plane splint on the electromyographic silent period duration.

An electromyographic study of the masseter and anterior part of the temporalis muscles was performed on ten patients presenting temporomandibular joint dysfunction symptoms. The EMG silent periods (SP) produced in the open-close-clench cycle and jaw-jerk reflex were compared for duration before and after treatment with an occlusal bite splint. Following use of the splint, there was a shortening of SP indicating the possible use of the duration of SP as a diagnostic measurement, and also as an indication of treatment effectiveness.

Adult↗
PubMed2002

Temporomandibular disorder treatment outcomes: second report of a large-scale prospective clinical study.

Longitudinal studies of outcomes for temporomandibular disorder (TMD) treatment are rarely done and even when conducted often suffer methodological weaknesses. These may include the lack of valid outcome measures for symptom changes. This second report of a long-term multi-site study of 2104 treated, 250 untreated, and 44 long-term treated TMD patients is part of a continuing effort to study TMD treatment efficacy in a very large patient population. A validated symptom measurement system, the TMJ Scale, assured a valid and uniform assessment of treatment outcomes across a large number of practices. Data indicate that untreated TMD patients do not improve spontaneously over time and that patients treated with a variety of active modalities achieve clinically and statistically significant levels of improvement with no evidence of symptom relapse after treatment completion. The use of anterior repositioning appliance therapy produced better results than flat plane splint therapy.

Adult↗
PubMed2002

The efficacy of anterior repositioning splint therapy studied by magnetic resonance imaging.

Magnetic resonance images (MRIs) were obtained of 52 temporomandibular joints (TMJs) of 30 patients with TMJ disease, before insertion of an anterior repositioning splint. Ten TMJs showed a normal disc-condyle relationship. Pathological findings were partial or complete anterior disc displacement with disc reduction (n = 18), without (n = 7), or with partial reduction (n = 4) or non-reducing joints combined with osteoarthrosis (n = 13). Associated clinical findings were joint clicking, painful TMJ movements with or without condyle limitation, deviation, or crepitus. The clinical evaluation when compared with the MRIs correlated in 75 per cent of cases. Immediate post-insertion MRIs showed recapture of discs with a protrusive splint in 15 out of 18 reducing displacements. Recapture of the disc was seen in only two out of four joints with anterior disc displacement with partial disc reduction. There was no recapture in non-reducing joints. In severe cases of internal derangement with a wide range of disc displacement combined with changes of the osseous joint surfaces, the recapturing of the articular disc with an anterior repositioning appliance was unsuccessful (0 of 13). The follow-up for pain relief after one week showed a significant reduction of symptoms, despite the fact that recapture of the dislocated disc occurred in only 17 of the 42 pathological TMJs. The possibility for disc recapture depends on the disc-condyle position and configuration, the integrity of the posterior attachment, and the degree of degenerative changes of the intra-articular structures, such as osteophytosis, condylar erosion, or flattening of the articular disc. This diagnostic information influences the method of treatment of TMJ disorders. In non-reducing joints or in the later stages of internal derangement of the TMJ, it is not possible to achieve a normal disc-condyle relationship using protrusive splints.

Humans↗
PubMed2005

Temporomandibular dysfunction and repositioning splint therapy.

AIM: The purpose of this paper is assess the effectiveness of repositioning splint therapy in the treatment of Temporomandibular dysfunction (TMD). MATERIALS AND METHODS: 464 patients with TMD, characterized by an internal derangement and other symptoms including, but not limited to, jaw locking, pain to palpation, headaches, and crepitus, were treated with an anterior repositioning splint to recapture the disc, followed by a superior repositioning splint to allow the muscles to "seat" the condlyles in the fossae. RESULTS: 90% of the patients experienced a remission of the symptoms and were treated to a generally pain free, functionally satisfactory state. CONCLUSION: The response to treatment noted in the 464 patients indicate that repositioning splint therapy is an effective treatment modality for temporomandibular disorders.

Dental Occlusion↗