Inessa Michl1, Dirk Nolte2, Claudia Tschammler3, Martin Kunkel4, Robert Linsenmann5, Johannes Angermair5. 1. Private Practice, Oral and Maxillofacial Surgery, Munich, Germany; Department of Oral and Maxillofacial Surgery, Ruhr-University of Bochum, Bochum, Germany. 2. Private Practice, Oral and Maxillofacial Surgery, Munich, Germany; Department of Oral and Maxillofacial Surgery, Ruhr-University of Bochum, Bochum, Germany. Electronic address: dirk.nolte@mkg-muc.com. 3. Private Practice, Oral and Maxillofacial Surgery, Munich, Germany; Department of Preventive Dentistry, Periodontology, and Cariology, University of Goettingen, Goettingen, Germany. 4. Department of Oral and Maxillofacial Surgery, Ruhr-University of Bochum, Bochum, Germany. 5. Private Practice, Oral and Maxillofacial Surgery, Munich, Germany.
Abstract
OBJECTIVE: Premolar autotransplantation represents an effective therapeutic option for the treatment of juvenile dentition with either aquired or congenital hypodontia. The objective of this prospective clinical study was to quantitatively assess bone and soft tissue levels after autogenous premolar transplantation by clinical and radiographic parameters. STUDY DESIGN: In the study, 26 premolars were transplanted in 20 patients after traumatic tooth loss (n = 16) or congenital aplasia (n = 10) in the anterior maxilla. Based on standardized photographic documentation, the relative soft tissue level was measured compared to the healthy adjacent teeth. Radiographic findings included evaluation of root resorption, pulp canal obliteration, and relative bone height. RESULTS: Average survival rate of transplanted premolars (n = 26) was 100% over a follow-up period of 29 months (range 10-60 months). The relative soft tissue level significantly increased by +1.1 mm (P < .01). Radiographs showed a tendency toward vertical bone growth. Continuous root development and signs of pulpal healing were observed postoperatively in 18 transplants (69.2%). CONCLUSIONS: Autogenous premolar transplantation represents a safe method to ensure functional and aesthetic rehabilitation in the anterior maxilla irrespective of the nature of tooth loss.
OBJECTIVE: Premolar autotransplantation represents an effective therapeutic option for the treatment of juvenile dentition with either aquired or congenital hypodontia. The objective of this prospective clinical study was to quantitatively assess bone and soft tissue levels after autogenous premolar transplantation by clinical and radiographic parameters. STUDY DESIGN: In the study, 26 premolars were transplanted in 20 patients after traumatic tooth loss (n = 16) or congenital aplasia (n = 10) in the anterior maxilla. Based on standardized photographic documentation, the relative soft tissue level was measured compared to the healthy adjacent teeth. Radiographic findings included evaluation of root resorption, pulp canal obliteration, and relative bone height. RESULTS: Average survival rate of transplanted premolars (n = 26) was 100% over a follow-up period of 29 months (range 10-60 months). The relative soft tissue level significantly increased by +1.1 mm (P < .01). Radiographs showed a tendency toward vertical bone growth. Continuous root development and signs of pulpal healing were observed postoperatively in 18 transplants (69.2%). CONCLUSIONS: Autogenous premolar transplantation represents a safe method to ensure functional and aesthetic rehabilitation in the anterior maxilla irrespective of the nature of tooth loss.
Authors: Clemens Raabe; Michael M Bornstein; Julien Ducommun; Pedram Sendi; Thomas von Arx; Simone F M Janner Journal: Clin Oral Investig Date: 2020-12-02 Impact factor: 3.573