![]() ![]() METHODS: Six pop-colas (3Regular 3Diet) and six pop- Guaraná drinks (4 Regular 2 Diet), were tested. AIM: (1) To determine the acidity of guaraná pop-drinks, and to compare data from children and adults for (ii) Calcium and phosphorous leeched from erosion with pop-colas and popguaraná (iii) pain after rinsing. Clinical advice relating to erosion needs to be based on evidence, and since calcium and phosphorous leech from teeth with acid drinks, we investigated pop-colas and pop-guaraná for sensitivity and erosion. Conclusion: Apple and grape juices have acidity below critical pH5.5 both have strong buffering capacities and will decalcify teeth by erosion, when exposed to these drinks in diets.Ĭhronic, frequent acidulated pop-drinks imbibing are erosive, and dentinal pain occurs after rinsing with acidulated pop-drinks. Results provide strong evidence that rinsing with Apple or Grape juices will erode teeth. Statistics consistently show significant (p<0.01 Student-t paired data) increases in Calcium and Phosphorous leeched from dentate (WITH TEETH) subjects after swishing with apple and grape juices tested. Results: Analysis reveals apple and grape juices have pH below 5.5. Data were analyzed ‘blind’ by technicians unaware of the source of procured samples. Juices from source were analyzed for Calcium, and Phosphorous, and post-swish expectorate samples were analyzed for Calcium and Phosphorous. Each sample was analyzed six times with Inductively Coupled Plasma with Optical Emission Spectroscopy (ICP-OES) for Calcium, and Phosphorous. Second: Two volunteer cohorts, were used to swish with 50mL aliquots of Apple and/orGrape juices for 30 seconds. ![]() The apple and grape juices were measured separately, using a 50mL bolus for measures, 6 times for each. Methodology: First: Six commercially available potable apple and grape juices were measured (six times each drink) for pH and buffering using 0.5 Molar NaOH with a Mettler DL 25 Automatic Titrator. Aim: (i) To test acidity (pH and buffering capacity) in vitro: (ii) and assess if these juices leach calcium from teeth in vivo. Introduction: Dental erosion from acid drinks is known in vitro with in vivo evidence that apple and grape juices cause erosion is rare. (An in vitro and in vivo report.) International Jnl Oral and Dental Health. Ref: Touyz LZG, NassaniLM, (2018) Acidity and Dental Erosion from Apple- and Grape-Juice. Nassani: McGill University, Faculty of Dentistry PQ, Canada. Acidity and Dental Erosion from Apple- and Grape-Juice.
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