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Reaction of Pulp because analysis of composite resin restoration


Hole drilling in ultra-composite resin, pulp stimulate the pain and spontaneous pain a higher incidence analysis of the following reasons: (1) composite resin to the pulp influential,doudoune moncler pas cher, lead to different levels of light-cured composite resin teeth marrow damage n]. The composition of the composite resin, which the low molecular weight organic resin components through dentinal tubules to the pulp irritation. When backfill curing is not complete and there would be more not monomer composition,moncler jacken, to take care myeloid bottom improper composite resin on pulp stimulation is more obvious, the patient will appear pulp stimulate pain, pulpitis and pulp necrosis. In the present study, the deep cavity with ultra-diamond composite resin filling, occurred within 2 weeks to stimulate pain patients was significantly higher than the middle and shallow nest cavity filling group; a month after the referral of patients with more than with pulp stimulate pain spontaneous pain in the treatment of pulp pulp necrosis state. ② to appease the two weeks of clinical observation showed that the curing heat impact on the pulp is thin dentin deep cavity and dentin, the Dycal calcium hydroxide retaining pulp and glass ionomer cement bottom of the measures to reduce the composite resin of toxic substances and bacteria invade. But the two materials, there is no thermal insulation, when light-cured composite resin canal temperature will continue to rise L3]. Therefore,abercrombie and fitch france, patients with dentin deep cavity in the light curing process, some patients during irradiation or shortly after filling pulp symptoms. ③ Table 2 shows that two weeks of the clinical observation that etching also have an impact on the pulp used in this type of etching agent etching time according to manufacturers instructions, due to etching can make the dentinal tubules. increased permeability, so that harmful components in the composite resin, for example, not polymerization of monomer composition and penetrate the bacterial micro-leakage and other factors more likely to invade the dental pulp, causing pulp irritation pain or symptoms of pulpitis. In this study, the authors found that 12 months after the referral of patients with the edge of a small number of filling body pigmentation, which prompted such restorations there are still micro-leakage. The study shows that in the presence of micro-leakage,ugg greece, accompanied by the intrusion of bacteria, the bacteria become the main stimulus of the pulp; good marginal seal, the bacteria are not pulp response stimulus. Therefore, we believe that 12 months after the referral of patients filling the body edge pigmentation associated with pulp stimulate pain patients pulp stimulate the pain is caused due to the impact of pulp by the the Microleakage invasive bacteria. ④ l ~~ l2 months three cases of spontaneous pain is underestimated due to the status of the pulp, caries or deep caries, pulp and sometimes existing congestion or chronic inflammatory state. Prone to mechanical hole preparation, etching, etc. stimulate factors pulpitis symptoms. Based on the above analysis, the authors believe that, in order to reduce the occurrence of the composite resin after pulp stimulate the pain, you should note the following points: (1) the clear pulp status; ② The manufacturers require acid etching agents and adhesive in strict accordance with instructions for use to avoid excessive openness of the dentinal tubules, to form a good marginal seal, reduce bacteria and monomer on dental pulp. The ③ deep holes or near the pith at the care myeloid and bottom of the measures to prevent toxic substances invade the dental pulp of composite resin. The ④ composite resin restorations should be cured completely. In order to improve the monomer conversion, the thickness of packing shall not exceed 2mm, can be appropriate to extend the exposure time or an increase in light intensity. Patients with deep cavity the tamponade thickness of each layer can be reduced, intermittent radiation curing, thereby reducing the stimulation of light thermal effects on the pulp.