PMID- 35119237 OWN - KVM - Der Medizinverlag CI - Copyright KVM - Der Medizinverlag OCI - Copyright KVM - Der Medizinverlag TA - Quintessence Int JT - Quintessence International IS - 1936-7163 (Electronic) IP - 6 VI - 53 PST - ppublish DP - 2022 PG - 522-531 LA - en TI - Tooth preservation of deeply destroyed teeth by forced orthodontic extrusion: A case series LID - 10.3290/j.qi.b2644901 [doi] FAU - Bruhnke, Maria AU - Bruhnke M FAU - Bitter, Kerstin AU - Bitter K FAU - Beuer, Florian AU - Beuer F FAU - Böse, Mats Wernfried Heinrich AU - Böse M FAU - Neumeyer, Stefan AU - Neumeyer S FAU - Naumann, Michael AU - Naumann M CN - OT -  forced eruption OT - orthodontic extrusion OT - tooth extrusion AB - Maintaining and restoring teeth exhibiting subgingival or even subcrestal defect extensions represent a common problem in daily practice. Such teeth are often deemed “unrestorable” due to a significant hard tissue loss and defect locations violating the biologic width. In order to achieve a sufficient 2-mm-ferrule design and reestablish the biologic width, both surgical crown lengthening and orthodontic extrusion have been suggested. However, surgical crown lengthening has a negative effect on the attachment level of adjacent teeth as well as esthetic disadvantages particularly in the esthetic zone. Therefore, orthodontic extrusion might be considered as a valid therapeutic alternative since gingival architecture is maintained. While most orthodontic appliances are too complex for daily application, forced orthodontic extrusion by means of the Tissue Master Concept might be a cost- and time-effective approach due to advances in adhesive and computer-assisted dentistry. This clinical case series illustrates the methodology of the rather straightforward Tissue Master Concept in specific clinical situations that may occur in clinical routine. AID - 2644901