Patent ID: 6981868

Claim:
A dental filling instrument comprising: a housing, said housing including: a push rod for extruding a dental filler; an electric drive motor for a push rod driving device for performing a dental filler extruding operation that causes the push rod to travel in a dental filler extruding direction coupled to and utilizing power of an electric power source; a control circuit means for controlling the dental filler extruding operation of the electric drive motor, said control circuit means being provided in said housing; an injection condition setting device for setting at least one of an amount of the dental filler to be injected, filler injection time and injection speed of the dental filler; an injection condition display device for displaying at least one of an amount of the dental filler to be injected, filler injection time and injection speed of the dental filler; a needle from which said dental filler is extruded fitted to a needle fitting portion of said housing; a heating device for heating the needle up to a temperature at which the dental filler is softened, the heating device being disposed at one of the needle fitting portion and a location adjacent to the needle fitting portion; a heating temperature setting device for setting the temperature up to which the needle is heated by the heating device; and a heating control device for controlling a heating operation of the heating device based on the temperature set by the heating temperature setting device; and wherein: the control circuit means includes: a traveling speed control section for controlling traveling speed of the push rod; a traveling distance control section for controlling distance which the push rod travels; and a traveling time control section for controlling traveling time of the push rod; and the control device controls the dental filler extruding operation of the push rod driving device based on the injection condition set by the injection condition setting device.