1. A textbook of oral pathology;Shafer,1983
2. Dilacerated unerupted maxillary central incisors;Stewart;Br Dent J,1978
3. Epidemiology of traumatic dental injuries to primary and permanent teeth in a Danish population sample;Andreasen;Int J Oral Surg,1971
4. The effect of traumatic injuries to primary teeth on their permanent successor. I. A clinical and histologic study of 117 injured permanent teeth;Andreasen;Scand J Dent Res,1971
5. The effect of traumatic injuries to primary teeth on their permanent successor. II. A clinical and radiographic follow-up study of 213 teeth;Andreasen;Scand J Dent Res,1971