Method and Device for the Vibrational Mechanical Activation of Composite Materials

Abstract

The invention relates to the field of dentistry and is used for reinforcing composite materials to eliminate various defects of dental hard tissues of carious and non-carious origin in the process of direct/indirect and reinforced/non-reinforced composite restorations. The claimed method includes vibrational mechanical activation of composite materials by vibrationally acting upon portions of composite material shaped by manual mechanical activation (e.g., roll/ball) and applied layer-by-layer to the region of a defect. A device for vibrational mechanical activation of a composite material includes at least one working portion for applying a composite material to the region of a defect, the working portion fixedly attached to a handle, which is connected by a framework to a micromotor that creates vibrations which are transferred via the working portion to a layer of composite material by distributing the same across the entire surface of the defect and achieving the simultaneous surface plastic deformation thereof.

1 . A method of vibration-based mechanical activation of a composite material in a direct or indirect layered composite restoration of a defect area of a tooth, the method comprising:
 subjecting a portion of the composite material to manual mechanical activation that forms a shaped portion of the composite material;   placing the shaped portion atop a portion of polymerized material disposed in the defect area that forms an oxygen-inhibited layer between the shaped portion and the portion of polymerized material in the defect area;   applying a vibrational impact to the shaped portion of the composite material such that the shaped portion is distributed in the defect area as a thin layer that undergoes plastic deformation atop the portion of polymerized material and eliminates the oxygen-inhibited layer; and   polymerizing the thin layer of the composite material that in combination with the portion of polymerized material forms a monolithic composite structure in the defect area.   
     
     
         2 . The method according to  claim 1 , wherein the vibrational impact to the shaped portion of the composite material is applied with an oscillation frequency up to 1000 Hz. 
     
     
         3 . The method according to  claim 1 , wherein the shaped portion of the composite material is subjected to the vibrational impact for at least 20 seconds. 
     
     
         4 . The method according to  claim 1 , wherein the shaped portion of the composite material is a roll or a ball. 
     
     
         5 . The method according to  claim 1 , further comprising applying the vibrational impact to the shaped portion of the composite material perpendicularly to a surface of the portion of polymerized material. 
     
     
         6 . The method according to  claim 1 , wherein the polymerized material disposed in the defect area is a polymerized adhesive or a polymerized portion of the composite material. 
     
     
         7 . The method according to  claim 1 , wherein the method further comprises:
 disposing an adhesive in the defect area of the tooth; and   polymerizing the adhesive that forms the portion of polymerized material disposed in the defect area.   
     
     
         8 . The method according to  claim 1 , wherein the method further comprises:
 disposing a first portion of the composite material in the defect area of the tooth; and   polymerizing the first portion that forms the portion of polymerized material disposed in the defect area.   
     
     
         9 . The method according to  claim 1 , wherein the method further comprises:
 disposing an adhesive in the defect area of the tooth;   polymerizing the adhesive to form a polymerized adhesive disposed in the defect area;   disposing a first portion of the composite material as a first thin layer atop the polymerized adhesive; and   polymerizing the first thin layer that forms the portion of polymerized material disposed in the defect area.   
     
     
         10 . The method according to  claim 9 , wherein disposing the first portion of the composite material comprises:
 subjecting the first portion of the composite material to manual mechanical activation that forms a first shaped portion of the composite material;   placing the first shaped portion atop the polymerized adhesive disposed in the defect area that forms a first oxygen-inhibited layer between the first shaped portion and the adhesive in the defect area; and   applying a first vibrational impact to the first shaped portion of the composite material such that the first shaped portion is distributed in the defect area as the first thin layer that undergoes plastic deformation atop the polymerized adhesive and eliminates the first oxygen-inhibited layer.   
     
     
         11 . A device for vibration-based mechanical activation of a composite material in a direct or indirect layered composite restoration of a defect area of a tooth, the device comprising:
 a dental plastic filling instrument comprising a handle and at least one working part, the handle having a tubular body, the at least one working part configured to at least place a shaped portion of the composite material to a defect area of the tooth; and   a framework fixedly attached to the handle, the framework comprising a battery power supply, a micromotor, and an activating element, the activating element capable of actuating the battery power supply, the battery power supply electrically connected to the micromotor, the micromotor capable of generating a vibrational impact applied via the at least one working part to the shaped portion of the composite material placed atop a portion of polymerized material disposed in the defect area that causes distribution of the shaped portion in the defect area as a thin layer that undergoes plastic deformation atop the portion of polymerized material and eliminates an oxygen-inhibited layer between the shaped portion and the portion of polymerized material, wherein the thin layer as polymerized and in combination with the portion of polymerized material forms a monolithic composite structure in the defect area.   
     
     
         12 . The device according to  claim 11 , wherein the battery power supply and the micromotor are placed in the framework, the framework fixedly attached to the handle with capability of removal from the handle. 
     
     
         13 . The device according to  claim 11 , wherein the battery power supply and the micromotor are placed in the framework, the framework fixedly attached inside the handle with capability of removal from the handle. 
     
     
         14 . The device according to  claim 11 , wherein the dental plastic filling instrument is metal. 
     
     
         15 . The device according to  claim 11 , wherein the at least one working part of the dental plastic filling instrument is metal. 
     
     
         16 . The device according to  claim 11 , wherein the at least one working part is fixedly attached to at least one terminal end of the handle. 
     
     
         17 . The device according to  claim 11 , wherein the at least one working part comprises a ball or a paddle. 
     
     
         18 . The device according to  claim 11 , wherein the vibrational impact has an oscillation frequency up to 1000 Hz.