Spread of oral
infection
,Introduction
• Oral cavity consists of more than 500 bacterial , several fungal , few
protozoal and many viruses species as normal residents.
• Occurrence of infectious disease is determined by the interaction of
host , the organism and the environment.
• In healthy state there is a balance among these factors and when this
balance is lost , then disease occurs.
,Infection
• It is a pathological state of disease caused by invasion of
pathogenic microorganisms within the body.
• Odontogenic infection is one of the most common infections
in humans .
, • Oral infection
Originates in dental pulp Originates in periodontal tissues
Through root canals
Disperse through spongy bone
Extended into periapical tissues May perforate cortical plate
Spread in various tissue spaces
infection
,Introduction
• Oral cavity consists of more than 500 bacterial , several fungal , few
protozoal and many viruses species as normal residents.
• Occurrence of infectious disease is determined by the interaction of
host , the organism and the environment.
• In healthy state there is a balance among these factors and when this
balance is lost , then disease occurs.
,Infection
• It is a pathological state of disease caused by invasion of
pathogenic microorganisms within the body.
• Odontogenic infection is one of the most common infections
in humans .
, • Oral infection
Originates in dental pulp Originates in periodontal tissues
Through root canals
Disperse through spongy bone
Extended into periapical tissues May perforate cortical plate
Spread in various tissue spaces
