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PubMed1989

[Devices and technics for plaque removal in special patients].

The devices and techniques available for the removal of dental plaque in special patients are described. The possible tooth brush modifications, dental floss and other material, as well as the techniques required for each type of special patient are also discussed.

Dental Care for Persons with Disabilities↗
PubMed2003

Temporomandibular response to early and late removal of bite-jumping devices.

This study was designed to monitor the amount of bone formed after 'early' and 'late' removal of bite-jumping devices and to compare it with that of normal growth. One hundred and thirty-five 35-day-old female Sprague-Dawley rats were randomly divided into seven control (n = 5) and 10 experimental (n = 10) groups. Appliances were fitted to position the mandible forward in the experimental groups. On day 30, the bite-jumping device was removed in two groups ('early' removal) and the rats were sacrificed on days 44 and 60. On day 44 the device was removed in one group ('late' removal) and the rats were sacrificed on day 60. The full-time wear and matched control animals were then sacrificed at different time points. Tissue sections (7 microm) were cut through the temporomandibular joint (TMJ) in the sagittal plane and stained with periodic acid and Schiff's reagent for the evaluation of new bone formation. Newly formed bone was measured using a computer-assisted image analysing system. The results showed that, in the condyle, early removal of the appliance resulted in less bone formation when compared with that of natural growth. Late removal of the appliance resulted in bone formation similar to that of natural growth. In the glenoid fossa, the level of bone formation was similar to that of the control at early and late removal of the appliance. In conclusion, early appliance removal results in subnormal growth of the posterior condyle but not of the glenoid fossa. Increasing the length of mandibular advancement secures normal levels of mandibular growth in the post-treatment period.

Activator Appliances↗
PubMed2006

The catheter is stuck: complications experienced during removal of a totally implantable venous access device. A single-center study in 200 children.

BACKGROUND: Totally implantable venous access devices (TIVAD) facilitate repeat intravenous therapy for children. Many children recover and the device may be removed. Although removal should be a simple procedure via a single incision, in our experience, this has not been the case. METHODS: Two hundred consecutive cases of removal of TIVAD from September 2000 to January 2004 at Sophia Children's Hospital, Rotterdam, were reviewed. RESULTS: Average patient age was 5.9 years. The commonest indication for placement was administration of chemotherapy (88%); commonest indication for removal was remission of disease (70%). The median duration in situ of the catheter was 29 months (range, 0.4-91 months). Complications with removal of the polyurethane catheter of the TIVAD were experienced in 16% of cases. To enable removal, a second incision was required in 28 patients, venotomy in 5; the catheter could not be removed in 3. For all complicated removals the catheter had been in situ for longer than 20 months. CONCLUSIONS: Long-term implantation of TIVAD with polyurethane catheter appears unsuitable owing to a high incidence of complication at time of removal.

Adolescent↗
PubMed2001

Acute effects of the Protonics system on patellofemoral alignment: an MRI study.

This study used magnetic resonance imaging (MRI) to determine whether changes in patellofemoral alignment occur after initial treatment with the Protonics exercise device. The first scan was obtained before the device was used. After performing a set of exercises with no resistance on the device the device was removed, and a second scan was obtained. The same set of exercises was again performed with resistance on the device set at the appropriate level, and a final scan was obtained with the device removed. An isometric leg press was maintained as each image was obtained to simulate more closely a functional weight-bearing activity. Subjects were 26 women with complaints of patellofemoral pain. The main outcome measures were: patellar tilt angle, bisect offset, and lateral facet angle. Nonparametric repeated measures analysis of variance tests showed no differences between test conditions for any of the three measures of patellofemoral alignment. We conclude that after an initial treatment session using the Protonics system there is no change in patellofemoral alignment as determined by MRI.

Adolescent↗