NEET MDS Shorts
310893
EndodonticsExplanation: Protruded anterior teeth are more susceptible to trauma and
fractures due to their position and exposure. This anatomical relationship
highlights the importance of considering tooth positioning in dental trauma
cases.
285893
EndodonticsExplanation: Class IV in the Ellis classification indicates a fracture that has
resulted in pulp exposure, often leading to a non-vital tooth.
Class IV: Crown Fracture with Pulp Involvement
Description:�Extensive fracture involving enamel, dentin, and pulp, often with significant loss of tooth structure.Endodontic Consideration:�Endodontic treatment is necessary due to pulp exposure. The tooth may require additional restorative procedures after root canal therapy to restore function and aesthetics.
348393
EndodonticsEDTA (ethylenediaminetetraacetic acid) is a chelating agent commonly used in endodontics to remove the smear layer and facilitate the enlargement of calcified canals. It helps in dissolving inorganic components of the dentin, making it easier to access and clean the root canal system.
947346
EndodonticsExplanation: A concussion in dental trauma refers to a situation where the tooth
is not displaced but may have sustained an injury that can lead to an enamel
fracture. This type of injury does not involve loss of tooth structure, which
aligns with the description of an enamel fracture without tooth structure loss.
729565
EndodonticsThe most frequent failures of root canal treated cases are often due to
inadequate obturation. This can occur when the root canal filling material does
not completely fill the space or when it is not properly compacted, leaving gaps
where bacteria can persist and cause reinfection. Proper preparation and
sterilization are also crucial, but inadequate obturation is the most common
technical error leading to treatment failure.
688536
EndodonticsThe designation "D2" on an endodontic file indicates the diameter of the file at
the tip, measured in hundredths of a millimeter. This helps clinicians select
the appropriate file size for root canal treatment.
863518
Endodontics1) The upper first premolar usually has two canals: This statement is true. While the presence of two canals in the upper first premolar is not guaranteed, it is quite common to find two canals in this tooth.
2) Root canal instruments are best sterilized by a chemical method: This statement is false. The best method for sterilizing root canal instruments is heat sterilization using an autoclave. Chemical methods can be used for surface disinfection but are not adequate for sterilization.
3) All root canals must be enlarged to at least a size 25 file: This statement is true. Enlarging the root canals to a size 25 or larger is a part of the cleaning and shaping process in root canal therapy to ensure thorough debridement and preparation for filling.
195687
EndodonticsClass IV: Crown Fracture with Pulp Involvement
Description: Extensive fracture involving enamel,
dentin, and pulp, often with significant loss of tooth structure.
Endodontic Consideration: Endodontic treatment is
necessary due to pulp exposure. The tooth may require additional
restorative procedures after root canal therapy to restore function and
aesthetics.