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Long-time etching at low pH jeopardizes periodontal healing
J Blomlöf1, L Jansson, L Blomlöf
1Department of Oral Histology and Cell Biology, School of Dentistry, Karolinska Institutet, Sweden.
Journal of Clinical Periodontology
|June 1, 1995
Summary
Low pH etching agents can impair periodontal healing long-term. Short-time etching may promote healing by preventing epithelialization, but caution is advised due to potential instability and infection risks.
Area of Science:
- Periodontology
- Biomaterials Science
Background:
- Low pH etching agents are used in dental procedures.
- The long-term effects of these agents on periodontal healing are not fully understood.
Purpose of the Study:
- To investigate the long-term impact of low pH etching agents on periodontal healing.
- To determine if necrotizing effects of etching agents impair healing outcomes.
Main Methods:
- Root surfaces surrounded by vital periodontal tissues were subjected to low pH etching.
- Different etching durations (long-time vs. short-time) were compared.
- Periodontal healing was assessed at 8 weeks.
Main Results:
- Long-time etching (3 min) at low pH resulted in impaired periodontal healing.
- Short-time etching appeared to promote connective tissue formation.
- Short-time etching prevented epithelialization of the periodontal wound.
Conclusions:
- Long-time low pH etching negatively affects long-term periodontal healing.
- Short-time etching may be beneficial for connective tissue formation.
- Clinical application requires caution, considering healing stability and oral hygiene.