title: Immediate, single stage, truly anatomic zirconia implant in lower molar replacement: a case report with 2.5 years follow-up.
abstract: This report demonstrates the clinical use of a modified, truly anatomic, root-analogue zirconia implant for immediate replacement of a two-rooted, left first mandibular molar. A 50-year-old female patient with chronic apical periodontitis of the left mandibulary first molar was referred and the tooth was extracted. The mesial root had to be removed surgically due to a root fracture. A truly anatomical, root identical, roughened zirconia implant modified by macro-retentions was manufactured and placed into the extraction socket by tapping 7 days later. After 4 months a composite crown was cemented in place. No complications occurred during the healing period. A good functional and aesthetic result was achieved with minimal bone resorption and soft tissue recession at 30 months follow-up. This report describes the successful clinical use of an immediate, single stage, truly anatomical root-analogue zirconia implant for replacement of a two-rooted tooth. Significant modifications such as macro-retentions yielded primary stability and excellent osseointegration. This novel approach is minimally invasive, respects the underlying anatomy, aids socket prevention, is time- and cost-saving with good patient acceptance as there is no need for bone drilling, sinus lift, bone augmentation or other traumatic procedures.
authors.affiliation: Medical University Vienna, Austria.
authors.forename: W
authors.initials: W
authors.lastname: Pirker
authors.forename: D
authors.initials: D
authors.lastname: Wiedemann
authors.forename: A
authors.initials: A
authors.lastname: Lidauer
authors.forename: A A
authors.initials: AA
authors.lastname: Kocher
mesh_terms: D016301:Alveolar Bone Loss / Q000517:prevention & control; D003758:Dental Implantation, Endosseous / Q000379:methods*; D019250:Dental Implants, Single-Tooth; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D057893:Immediate Dental Implant Loading; D008334:Mandible; D008875:Middle Aged; D008963:Molar / Q000601:surgery; D010485:Periapical Periodontitis / Q000601:surgery; D014081:Tooth Extraction; D014092:Tooth Root / Q000601:surgery; D020390:Tooth Socket / Q000601:surgery; D015040:Zirconium
chemical_list: D003776:Dental Porcelain; D015040:Zirconium; C028541:zirconium oxide