Student Theses, Dissertations and Capstones

Document Type

Thesis - NSU Access Only

Degree Name

Master of Science (M.S.) in Dentistry

Copyright Statement

All rights reserved. This publication is intended for use solely by faculty, students, and staff of Nova Southeastern University. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, now known or later developed, including but not limited to photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author or the publisher.

Department

College of Dental Medicine

First Advisor

Cristina Godoy

Date of original Performance / Presentation

January 2023

Publication Date / Copyright Date

1-1-2023

Abstract

Abstract EFFECTS OF COFFEE AND OTHER BEVERAGES ON THE FORCE PROFILE OF ELASTIC POWER CHAINS OVER TIME; AN INVITRO STUDY DEGREE DATE: JUNE 2023 MARISSA SOLARES, D.M.D. COLLEGE OF DENTAL MEDICINE NOVA SOUTHEASTERN UNIVERSITY Thesis Directed By: Cristina Godoy, D.D.S., M.P.H., Gisela Contasti, D.D.S., Elyssa Barnett, D.M.D., M.S. Objectives: The effect of three common beverage choices on the force decay of orthodontic elastomeric power chains were evaluated. Methods: In this in vitro study, 40 elastomeric chains of the same trademark were investigated. The experimental groups consisted of 3 different beverages: Hot Espresso Coffee, Coca-Cola soda, Gatorade Lemon Lime sports drink plus a control group, which is Deionized Water. Force was measured at the following intervals: baseline (immediate exposure), 1 hour, 24 hours, 7 days, and 21 days. Tensile testing was executed using a Universal Testing Machine 8841 (Instron, Norwood, MA) with a crosshead speed of 20 mm/min. Descriptive statistics including the mean values and standard deviations of automatically recorded tensile loads were calculated for each sample at each time point. Data was analyzed by means of two-piece HSD Test and one way ANOVA at a significance level of 0.05. Results: Our analysis revealed significant differences between several beverage comparisons at the 0-hour mark (Significance at p < 0.05, Water-Gatorade, Water-Coca-Cola, and Coca-Cola-Coffee). However, no other significant differences were observed at this time point. Additionally, our analysis revealed significant differences between Coffee and every other beverage at 1 hour, 24 hours, and 7 days (Significance at p < 0.05, Coffee-Water, Coffee-Gatorade, Coffee-Coca-Cola). At the 21-day mark, we observed significant differences between all comparisons except for Gatorade-Coca-Cola (Significance at p < 0.05, Coffee-Water, Coffee-Gatorade, Coffee-Coca-Cola, Gatorade-Water, Coca-Cola-Water). Conclusions: 1) At zero hour mark there was statistical significance of Water having more force decay than Coca-Cola, and Gatorade. Coffee had more force decay than Coca-Cola at the zero-time point that was statistically significant as well. 2) At 1 Hour, 24 Hour, and 7 Days; Coffee had statistically significant force degradation of the elastics compared to Gatorade, Water, and Coca-Cola. 3) At 21 days, Coffee had the most statistically significant force degradation of the elastics over Gatorade, Coca-Cola, and Water. At the 21-day time point, Water showed statistically significant force decay of elastics when compared to Gatorade and Coca-Cola. At the 21 Day time point, Coca-Cola and Gatorade had no statistically significant difference in force decay of elastics.

Disciplines

Dentistry

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