Effects of rehydration and food consumption on salivary flow, pH and buffering capacity in young adult volunteers during ergometer exercise

Abstract

BackgroundThe aim of this study was to investigate the influences of rehydration and food consumption on salivary flow, pH, and buffering capacity during bicycle ergometer exercise in participants.MethodsTen healthy volunteers exercised on a bicycle ergometer at 80% of their maximal heart rate. These sessions lasted for two periods of 20 min separated by 5-min rest intervals. Volunteers were subjected to one of the following conditions: (1) no water (mineral water) or food consumption, (2) only water for rehydration, (3) water and food consumption, (4) a sports drink only for rehydration, and (5) rehydration with a sports drink and food. Statistical significance was assessed using one-way analysis of variance and Dunnett’s test (p < 0.05).ResultsThe salivary pH decreased significantly during and after exercise in conditions 4 and 5. The salivary buffering capacity decreased significantly during exercise and/or after the exercise in conditions 1, 3, 4, and 5.ConclusionsThe results showed that salivary pH and buffering capacity decreased greatly depending on the combination of a sports drink and food.

Sports drink consumption and dental erosion among amateur runners

“…Extrinsic sources with a low pH include fresh citrus fruit and their juices, acidulated carbonated beverages, and sports supplement drinks, many of which contain citric acid (8,9). Furthermore, high consumption of drinks by athletes during exercise, along with transient xerostomia resulting in inadequate rinsing and subsequent demineralization of the tooth surface by acids, may lead to erosive lesions on teeth (9)(10)(11).…”

“…Extrinsic sources with a low pH include fresh citrus fruit and their juices, acidulated carbonated beverages, and sports supplement drinks, many of which contain citric acid (8,9). Furthermore, high consumption of drinks by athletes during exercise, along with transient xerostomia resulting in inadequate rinsing and subsequent demineralization of the tooth surface by acids, may lead to erosive lesions on teeth (9)(10)(11). Dental erosion in athletes is a growing concern, and a number of studies have investigated the occurrence of dental erosion in relation to consumption of isotonic drinks during swimming practice, college sports, and cycling (12,13).…”

Nickel ion release from stainless steel brackets in chlorhexidine and Piper betle Linn mouthwash

“…Thus, high corrosion resistance metals or alloys are the best choice to prevent orthodontic brackets corrosiveness. 1,2 Stainless steel bracket is one of metal orthodontic bracket. This brackets have some primary advantages such as greater strength, lower cost, good modulus of elasticity and formability than any other brackets, and have high corrosion resistance in the oral cavity.…”

“…They should also have a good biocompatibility and high corrosion resistance. [1][2][3] Brackets are usually placed in oral cavity between two and three years. During this time, brackets are contaminated by substances from the inside and outside mouth.…”

“…This brackets have some primary advantages such as greater strength, lower cost, good modulus of elasticity and formability than any other brackets, and have high corrosion resistance in the oral cavity. [1][2][3][4] There are some types of stainless steel brackets, such as AISI type 304 L SS, 316 L SS, and 17-4 PH SS. Stainless steeel 304 L consist of 18-20% chromium, 8-10% nickel, and less than 0.03% manganese, silicon, and carbon.…”