Chapter ten Extraction of primary teeth and young permanent teeth Chongqing Medical University Department of preventive and pediatric dentistry Yang gang
Chapter ten Extraction of primary teeth and young permanent teeth Chongqing Medical University Department of preventive and pediatric dentistry Yang gang
Preface
Preface
Indication of extraction -Indication of extraction of primary teeth 1.Primary teeth which can't be preserved Residual crowns and residual roots Primary teeth with severe periapical infection
Indication of extraction 一. Indication of extraction of primary teeth 1. Primary teeth which can’t be preserved ▪ Residual crowns and residual roots ▪ Primary teeth with severe periapical infection
The root tip of primary teeth expose out the gum The injured primary teeth which can't be preserved
▪ The root tip of primary teeth expose out the gum ▪ The injured primary teeth which can’t be preserved
2.Extraction for orthodontic treatment primary tooth retention Missing teeth.Hypodontia Unloose retent primary teeth serial extraction a.Primary canines b.First primary molars c.First premolars
2．Extraction for orthodontic treatment primary tooth retention Missing teeth. Hypodontia Unloose retent primary teeth serial extraction a.Primary canines b.First primary molars c. First premolars
3.Anomalies of tooth formation and eruption Extra teeth ,geminated fusion and impacted teeth
3. Anomalies of tooth formation and eruption Extra teeth ,geminated , fusion and impacted teeth
=Indication of extraction of young permanent teeth Residual crowns and residual roots Permanent teeth with severe periapical infection which can't be treated
二 ． Indication of extraction of young permanent teeth Residual crowns and residual roots Permanent teeth with severe periapical infection which can’t be treated
The injured permanent teeth which can't be preserved Extraction for orthodontic treatment
The injured permanent teeth which can’t be preserved Extraction for orthodontic treatment
Contraindication of extraction (-)Whole body condition 1.Blood Diseases 2.Diseases of Endocrine System 3.Heart and kidney diseases 4.Acute infectious episode (二)Local factor 1.Infected teeth 2. Gingivitis and severe diseases of oral mucosa
Contraindication of extraction （一） Whole body condition 1． Blood Diseases 2． Diseases of Endocrine System 3． Heart and kidney diseases 4． Acute infectious episode （二） Local factor 1． Infected teeth 2． Gingivitis and severe diseases of oral mucosa
Preparation of extraction ()Mental preparation. (Clinical preparation 1.Appliance preparation 2.Cleanliness,disinfection 3.Tooth examination
Preparation of extraction （一） Mental preparation. （二） Clinical preparation 1． Appliance preparation 2． Cleanliness, disinfection 3． Tooth examination