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The effect of environment (Dry and Natural Saliva) on clasp retention: In vitro study - Part I

OBJECTIVE: The purpose of this study was to investigate the importance of environments (dry and wet) to dislodge the clasp. MATERIALS AND METHODS: Mandibular test models with natural premolar and molar teeth were used to test four types of clasp (each 12) (Akers, rest plate Akers [RPA], half and hal...

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Detalles Bibliográficos
Autores principales: Mourshed, Bilal, Qaed, Nashwan Mohammed, Al-Shamiri, Hashem Motahir, Alaizari, Nader, Alhamdah, Saleh Sulaiman, Alfaqih, Amal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5594965/
https://www.ncbi.nlm.nih.gov/pubmed/28932146
http://dx.doi.org/10.4103/ejd.ejd_158_17
Descripción
Sumario:OBJECTIVE: The purpose of this study was to investigate the importance of environments (dry and wet) to dislodge the clasp. MATERIALS AND METHODS: Mandibular test models with natural premolar and molar teeth were used to test four types of clasp (each 12) (Akers, rest plate Akers [RPA], half and half [H-H], and ring clasp) in dry and natural fresh saliva environments. Each clasp was pulled out 10 times with a crosshead speed of 10 mm/min and the force required to withdraw each was measured. STATISTICAL ANALYSIS USED: A paired sample t-test and Wilcoxon test were used. RESULTS: There were significant differences between the dry and wet (natural fresh saliva) environment. However, while the mean of the environment for RPA and ring clasp type was significantly different, the H-H and Akers clasp type was not. CONCLUSION: The environment has an effect on dislodging the clasp but differs according to the type of clasp.