Therapeutics in Dentistry(General Principles)
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Transcript of Therapeutics in Dentistry(General Principles)
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Therapeutics in Dentistry(General Principles)
• Iyad Abou Rabii
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1991
MRes (Master of Research)
PG Diploma Oral and Max-Fac Surgery
Docteur of Dental Surgery
1993
1998
1998
2001
2004
2005
PG Certificat (General Pharmacology)
PG Diploma (Pharmaceutical Engeneering)
PhD(Dental Pharmacology)
PG Certificat (Implant Dentistry)
2012 MSc (Medical Education)
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2
Pharmacology Basics
• Indications
• Contra-indications
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2
Pharmacology Basics
• Indications– The reasons for administering a medication
or performing a treatment
• Contra-indications– A factor that prevents the use of a
medication or treatment (eg. Allergies)
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3
Pharmacology Basics
• Dose
• Mechanism of Action
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3
Pharmacology Basics
• Dose– The amount of a drug to be administered at
one time
• Mechanism of Action– How a drug works
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4
Pharmacology Basics
• Effects
• Side Effects
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4
Pharmacology Basics
• Effects– The desired result of administration of a
medication
• Side Effects– Effects that are not desired and that occur in
addition to the desired therapeutic effects
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6
Medication Names• Chemical Name
• Generic Name
• Trade Name
• Official Name
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Medication Names• Chemical Name
– describes the drug’s chemical structure
• Generic Name – reflects the chemical name, but in shorter form
• Trade Name– the name the manufacturer uses to market the drug
• Official Name– the name used in the Pharmocopoeia
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Routes of drug administration
• Enteral tract routes• Parenteral routes
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Comparison of Enteral vs. Parenteral Routes
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Enteral Routes
• Oral (PO)• Orogastric/nasogastric (OG/NG)• Sublingual (SL)• Buccal• Rectal (PR)
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Parenteral Routes• Topical• Intradermal• Intranasal• Subcutaneous (SC)• Intramuscular (IM)• Intravenous (IV)• Endotracheal (ET)
• Sublingual injection
• Intracardiac (IC)• Intraosseous• Inhalational• Umbilical• Vaginal• Pulpal
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No No singlesingle method of drug method of drug administration is ideal for all administration is ideal for all drugs in all circumstancesdrugs in all circumstances
Very Important
Very Important
Info!Info!
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What are the essential components What are the essential components of a drug prescription? of a drug prescription?
Drug prescripti
on
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Essential Components of Prescriptions
All written prescriptions should contain:
1) Patient's full name and address
2) Prescriber's full name, address, telephone number,
3) Date of issuance
4) Signature of prescriber
5) Drug name, dose, dosage form, amount
6) Directions for use
7) Refill instructions
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The Medication Order (Prescription)
• Medication desired• Dose desired• Administration route• Administration rate
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Before any Drug prescription
• Discuss with patient the possible consequences (god and bad)
• Prescribe drugs you know• Keep updated (BNF, Vidal…others)• Dose: consider age, physiology,
and pathology • Drug interactions
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• The Dentist is legally responsible for the signed prescription
• Prescription should be indelible, dated, with full name and address of the patient
• Age of patient should be mentioned when under 12.
• Use generic drugs when possible
Prescribing
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• Don`t use abbreviations for the drug names.• Define the quantity supplied• Directions should be in English with no use
of the abbreviations
Prescribing
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Prescribing
• When writing the dose– Quantities of one gram is wrriten (1 g)– Less than 1 g is written in milligrams (500 mg)– Less than l mg should be written in microgram
100 microgram (not 0.1 mg)– Nanogram and microgram should not be
abbreviated
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Clark’s Rule
Clark's Rule
Divide the child’s weight (in pounds) by 150 to get the approximate fraction of the adult dose to give to the child.
Example: For a 50 pound child give 50/150 (or 1/3) of the adult dose. Therefore, if the adult dose is 30 drops taken 3 times per day, the child’s dose will be 10 drops taken 3 times per day
(not 30 drops taken 1 time per day).
•
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Essential Components of Prescriptions
All written prescriptions should contain:
1)Patient's full name and address
2)Prescriber's full name, address, telephone number,
3)Date of issuance
4)Signature of prescriber
5)Drug name, dose, dosage form, amount
6)Directions for use
7)Refill instructions
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Essential Components of Prescriptions
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Latin abbreviations Latin abbreviations
• Rx : abbreviation of the Latin word "recipe” x as a Rx : abbreviation of the Latin word "recipe” x as a substitute period.substitute period.
• # ac (ante cibum) # ac (ante cibum)
• means "before meals"means "before meals"
• # bid (bis in die) means # bid (bis in die) means
• "twice a day""twice a day"
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Latin abbreviations Latin abbreviations
• # po (per os) # po (per os)
• means "by mouth"means "by mouth"
• # pc (post cibum) means # pc (post cibum) means
• "after meals""after meals"
• # prn (pro re nata) # prn (pro re nata)
• means "as needed"means "as needed"
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Latin abbreviations Latin abbreviations • # q 3 h (quaque 3 hora)# q 3 h (quaque 3 hora)
• means "every 3 hours"means "every 3 hours"
• # qd (quaque die) # qd (quaque die)
• means "every day"means "every day"
• # qid (quater in die) means # qid (quater in die) means
• "4 times a day""4 times a day"
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