Chemical plaque control Flashcards
how is periodontal disease controlled?
plaque levels must be below the patients disease threshold
- higher the patient susceptibility the better the plaque control needs to be
what is a good visible way to explain to patients that plaque causes periodontal disease?
plaque chart
blue = older
pink = newer
is mouthwash recommended?
no
what is the recommended concentration for fluoride?
1000-1500ppm
what does triclosan do?
reduces plaque, gingivitis, bleeding gums and tooth decay
what are the antibacterial modes of action?
prevent adhesion of primary and secondary plaque bacteria, bacterial growth and formation of plaque matrix
modify the plaque and bacteria to be less pathogenic
what are anti-calculus (tartar) agents called?
crystal growth inhibitors
what do desensitisers in toothpaste do?
block the dentine tubules or reduce sensitivity of the nerve
name a desensitiser in toothpaste?
Novamin
what is the mode of action for Novamin?
releases ions that react forming a hydroxyapatite layer which is resistant to physical removal and harder than dentine
what does substantivity mean?
ability for a drug to be on the site long enough to cause effect
what do abrasives in toothpaste need to do?
need to clean adequately without damaging enamel/dentine
what are the functions of detergents and abrasives in toothpaste?
so it foams up which helps distribute it around the oral cavity and prevents the separation of liquid and solid phases during storage
what is the function of thickeners in toothpaste?
give consistency
what is the function of humectants and preservatives in toothpaste?
keeps moisture in so doesn’t dry out and prevents bacterial growth
what can flavouring and sweeteners in toothpaste cause?
irritation
what is wrong with herbal/natural toothpaste?
often don’t contain fluoride, low abrasiveness and no evidence base for effectiveness
what is advised with smoking toothpaste?
can be very abrasive and can wear enamel so check and avoid it
what are the side effects of biguanide antiseptics - corsodyll
Parotid gland enlargement
Increased calculus formation
Staining of teeth, mucous membranes and tongue from chlorohexidine binding tanins e.g. tea
Unpleasant taste/alteration of taste sensation
Mucosal redness/burning/erosion
what is recommended as an alternative to corsodyll for necrotising gingivitis?
oxygenating mouthwash - hydrogen peroxide
what are the disadvantages of alcohol in monuthwash?
Dry the oral mucosa and increase sensitivity of teeth
May lead to alcohol toxicity in children if consumed
Alcohol consumption increases the risk of oral and pharyngeal cancer
Can reduce hardness of composite and bonding - increased staining
