Wear resistance of nano silica modified acrylic denture teeth and nano filled composite denture teeth

Abdalla, Mohamed Mahmoud; Masoud, Muhammad Abbas

doi:10.21608/edj.2018.79229

Cited by 2 publications

(1 citation statement)

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“…This higher pressure level was selected for simulation of the worstcase scenario that can occur as in a case of high occlusal contact, or improper balance of complete denture occlusion leading to increased pressure and wear in isolated areas (8) . Wear simulation with 37,500 cycles was applied to simulate three months of clinical function according to previous studies (16,17) .…”

Section: Discussionmentioning

confidence: 99%

Effect of Two Denture Teeth Materials on Masticatory Efficiency, Wear, Bonding to Denture Base

Ahmed¹,

El-Din

Kabeel

2022

ADJ-for Girls

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Purpose: This study compared between nano composite denture teeth and IPN crosslinked acrylic teeth regarding masticatory efficiency and some mechanical properties (wear, micro tensile bonding strength to denture base). Material and methods: Ten completely edentulous patients with ages ranging from 55-60 years were selected. Each patient received two dentures made from heat-cured acrylic resin , One with IPN crosslinked acrylic teeth and the other with nano composite teeth. Masticatory efficiency was evaluated for each patient at the time of insertion of the dentures and one month later.Laboratory study: For testing wear, thirty specimens were constructed and divided into two groups. Fifteen IPN cross-linked acrylic teeth (Group І) and Fifteen nano composite denture teeth (Group ІІ). For testing Micro tensile bonding strength, Twelve specimens were constructed of artificial teeth together with the heat-cured acrylic resin bases, These specimens were fixed to a micro-sawing machine and cut into one hundred and twenty micro beam samples which were then divided into two groups; sixty beams of IPN cross-linked acrylic teeth (Group І) and sixty beams of nano composite denture teeth (Group ІІ). Results: The results revealed no statistical significant differences (p ≤ 0.05) as indicated by paired t-test between IPN cross-linked acrylic teeth and nano composite teeth in masticatory efficiency, wear, and micro tensile bonding strength to the denture base. Conclusions: In comparison to IPN cross-linked acrylic teeth, nano composite denture teeth showed non-significant difference regarding masticatory efficiency, wear resistance, and micro tensile bonding strength to the denture base.

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Section: Discussionmentioning

confidence: 99%