Hardened dentin surface preparation methods

A surface pretreatment, dentin technology, applied in dentistry, pharmaceutical formulations, filling teeth, etc., can solve the problems of easy falling off of fillings, and achieve the effect of improving surface roughness, enhancing bonding strength, and solving falling off.

Active Publication Date: 2020-11-03
AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the special physical characteristics of hardened dentin, there is still the problem that the fillings are easy to fall off.

Method used

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  • Hardened dentin surface preparation methods
  • Hardened dentin surface preparation methods
  • Hardened dentin surface preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The concrete method that embodiment one proposes is as follows:

[0020] Before composite resin bonding and filling, the surface of hardened dentin was pretreated with 35% phosphoric acid gel for 30 seconds; 2 Rinse with O for 30 s; after drying, pretreat the surface of hardened dentin with 5% or 10% NaClO solution for 60 s, and rinse with H 2 O Rinse for 30 s, and after drying, complete the pretreatment of the hardened dentin surface.

[0021] After pretreatment of the hardened dentin surface, one-step self-etching adhesive (AdperTM Easy One, 3MESPE, USA) was selected for routine rubbing, and then composite resin (3M Filtek Z250A3, 3M ESPE, USA) was used for filling and curing.

Embodiment 2

[0022] The specific method that embodiment two proposes is as follows:

[0023] The hardened dentin surface was pretreated with 35% phosphoric acid gel for 30 s. Rinse for 30s and dry. The surface of hardened dentin was pretreated with 5% NaClO solution for 60s, rinsed for 30s, and dried to complete the pretreatment of hardened dentin surface. Then, choose AdperTM Easy One one-step self-etching adhesive, 3M Filtek Z250A3 composite resin for filling and curing.

[0024] The feasibility and correctness of the method proposed in the embodiment are verified through the following experiments. For isolated teeth, the following pretreatment methods were used:

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Abstract

The invention provides a surface treatment method for sclerotic dentin. The surface treatment method comprises the following steps: before bonding and filling of composite resin, adopting phosphate gel with the concentration of 35% to pretreat the surface of the sclerotic dentin for 30 seconds; using H2O to wash for 30 seconds; after drying, adopting NaClO solution with the concentration of 5% or10% to pretreat the surface of the sclerotic dentin for 60 seconds, using H2O to wash for 30 seconds, and after drying, finishing pretreatment for the surface of the sclerotic dentin. The surface treatment method provided by the invention has the advantages that by combined action of sodium hypochlorite of certain concentration and phosphoric acid of certain concentration, the physical structure of the surface of the sclerotic dentin is changed, and the surface roughness is increased, so that the bonding strength of the composite resin for the sclerotic dentin is enhanced.

Description

technical field [0001] The invention relates to a method for pretreatment of hardened dentin surface. Background technique [0002] In oral clinical work, dentin bonding has always been a key issue that clinicians pay attention to. The firmness of dentin bonding directly affects the prognosis of restorative treatment. According to the different properties of dentin, it can be divided into normal dentin, carious dentin, and non-carious sclerotic dentin. At present, caries and tooth defects in clinical work are mostly abnormal dentin (carious dentin, hardened dentin). Among them, the bonding strength of non-carious sclerotic dentin (cervical scleroticdentin, CSD) in the neck of the tooth is a difficult point in clinical treatment. Existing studies have shown that the bonding strength of sclerotic dentin is 26%-30% lower than that of normal dentin. , causing the fillings to fall off from time to time, which brings troubles to both doctors and patients, and consumes manpower,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/00A61C5/20A61C5/40
CPCA61C5/20A61C5/40A61K6/40
Inventor 魏昕王金花马鸣徐秀清李成蹊陈圣琰
Owner AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
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