Saturday, 2 November 2013


Haase’s rule-age in lunar months::
If Crown heel length is <25 cm, age in months = square root of length
If Crown heel length is >25 cm, age in months = length / 5

 Gustafson s method
:: (25-60years),APSRTC
Secondary dentine
Root resorption
Transparency of root
Cementum apposition

 The study of incremental lines in the enamel of tooth to assess the age of a person is known as Boyde’s Method

 Stakes method:: Upto age of 12years, by measuring dimension of teeth and weight of teeth one can make out the age

Taurodontism is a peculiar tooth form in which the body of the tooth and the pulp chamber are enlarged at the expense of the root. Seen in Mongols

Declaration of geneva--> Declaration of a physician's dedication to the humanitarian goals of medicine
Declaration of Oslo--> Therapeutic abortion.
Declaration of Helsinki-->Human experimentation and clinical trials
 Declaration of Tokyo--> Torture in medicine*

 Kennedy phenomenon deals with Evaluation of exit and entry wound

 Carabelli's cusp. This is variably expressed but, when present, is a projection that occurs on the lingual (tongue side) surface of the maxillar first molars. Rare among Asiatics but very widespread among Native Americans.

Quinacrine dihydrochloride is used for staining Y-chromosome
Acriflavin Schiff reagent is used for staining X—chromosome

 Davidson body (drumstick appearance) in neutrophil ' Gonadal biopsy (from testes or ovaries) is a confirmatory method of determining sex. Present in females and absent in males

 A person accused of criminal offence may be medically examined without his consent on the request of the police:: Section 53, CrPC

CRPC 54: Examination of arrested person by medical practitioner at the request of the arrested person.

 Negligence by Doctor: 4 D's
Duty bound
Direct causation

 Algor mortis is the process by which the body cools after death as a result of loss of heat to the surroundings. A NOMOGRAPH is a diagram that allows a complicated mathematical relationship to be solved simply with a ruler.

Conditions causing postmortem caloricity:
   in heat regulation – sunstroke, pontine haemorrhage
Increased heat production in muscles – tetanus, strychnine poisoning
Bacterial / viral activity – septicemia / infections Intense asphyxia

Colour of post mortem lividity::
Normal – Bluish pink which later turns into bluish purple
Carbon monoxide – Bright cherry red
Cyanide – Pink
Phosphorous – Dark brown
Chlorates,nitrates,aniline – Chocolate brown
Hydrogen sulphide – Bluish green
Opiates – Black

Putrefaction is delayed in poisoning due to Carbolic acid, Barbiturates, lead, Datura, Arsenic, Strychnine, Cyanide

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