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Precision of Digitally Produced Stabilization Splints
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
2015 (engelsk)Independent thesis Advanced level (professional degree), 20 poäng / 30 hpOppgave
Abstract [en]

In the management of temporomandibular disorders (TMD) a stabilization splint is usually recommended. The time needed to adjust a splint to the individual patient can be considerable and may thus be a factor related to a relatively low percentage of performed treatments using such therapy. Digital technology was developed primarily for prosthodontic work, but could as well serve as an aid in manufacturing occlusal splints. The aim of this study was to evaluate the precision of digitally manufactured splints in vivo and try to find systematic errors, if any.

 

Five test subjects were included. Digital intraoral scans were recorded using Trios 3Shape™. Two sets of splints with different vertical dimensions were manufactured for each test subject. The splints were analyzed using an examination protocol, to determine fit, comfort, and distribution of contacts. The contact patterns were also analyzed with occlusal foil, silicone impressions, and a non-commercial software, Optic Bite. A splint angle was calculated with the intention of defining whether or not there is a systematic angular error.

 

Overall, adequate fit and excellent patient-comfort was observed for all but two of the digitally manufactured splints. The number of contacts and their distribution varied from 1-11 with a median of 4 and was not correlated to splint thickness or splint angle. Four splints showed acceptable number of contacts, bilaterally distributed. No systematic errors were found.

 

The digitally produced splints had good fit to the upper jaw. The causes behind variations in occlusal contacts were not disclosed.

sted, utgiver, år, opplag, sider
2015.
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-113653OAI: oai:DiVA.org:umu-113653DiVA, id: diva2:886317
Utdanningsprogram
Dentistry Programme
Veileder
Examiner
Tilgjengelig fra: 2015-12-22 Laget: 2015-12-22 Sist oppdatert: 2016-02-08bibliografisk kontrollert

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