Hooghiemstra, N. (Nolle) (2014) Temperatuurstijgingen in de pulpa bij het vervaardigen van een indirecte restauratie II: Tijdelijke voorzieningen en cementatie. thesis, Dentistry.
![[img]](https://umcg.studenttheses.ub.rug.nl/style/images/fileicons/text.png) |
Text
HooghiemstraN.pdf Restricted to Registered users only Download (1MB) |
Abstract
Research has shown that a temperature rise of 5,5 °C in the pulp can cause damage to the pulp tissue (Zach & Cohen 1965). During the process of indirect restoration temperature rises in the pulp may occur. In this paper the temperature rise during temporary restoration and cementation is subject to research. The following two null hypotheses are used: 1. When providing a temporary restoration temperature rises no more than 5,5 degrees in the dental pulp. The maximum temperature rise is the same for different materials. 2. At cementation temperature rises no more than 5,5 degrees in the dental pulp. The maximum temperature rise is the same for different cements. For this research 30 extracted molars are split randomly into three groups. A thermic sensor is placed in the pulp chamber. Full coverage crown preparations are made on all molars. For each group a temporary restoration is made using Protemp, Structur and Tab2000. After this a Protemp restoration is cemented for each group using Fuji I, Panavia and Variolink. The primary outcome is the maximum temperature change in the dental pulp. The Shapiro-Wilk test, One-way Anova and LSD post-hoc are used for statistical analysis. The results show that temperature rises in the pulp during temporary restoration and cementation. For Protemp, Fuji and (only) irradiation there is a small chance of exceeding the 5,5 degrees maximum temperature change (respectively 7%, 0% and 20%). For Structur, Tab2000, Panavia and Variolink there is a large chance of exceeding the 5,5 degrees maximum temperature change (respectively 69%, 84%, 67% and 67%). The One-way ANOVA shows a significant difference between the different temporary restoration materials [F(2,27)=8,9, p=0,001] and the different cements [F(3,32)=25,1, p=0,000]. The post-hoc test shows that there is no significant difference comparing Structur and Tab2000 (p=0,63) and comparing Panavia and Variolink (p=0,787).
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Bakker, Drs. S.G. and Cune, Prof. dr. M.S. |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 11:06 |
| Last Modified: | 25 Jun 2020 11:06 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/2576 |
Actions (login required)
 |
View Item |