Title: Custom-made, zirconia root-analogue implant: A case report
Abstract:
This report demonstrates the clinical use of a modified, anatomic, root analogue customized zirconia implant for immediate replacement of a single-rooted, left second hopeless endodontically treated mandibular premolar. A 37-year-old male patient with chronic apical periodontitis and previous hopeless endodontic treatment with prefabricated metal post and coronal leakage of the left mandibular second premolar was referred, and the tooth was carefully extracted with periotom under local anesthesia. After gentile curettage of the alveolar socket with normal saline, A truly anatomical, root analogue, roughened (sandblasted) zirconia implant modified by different macro-retentions was manufactured by using DICAM file from CBCT milled zirconia blank and after cleaning and sterilization process placed into the extraction socket by tapping at the same day. After four months, a zirconia crown was cemented in place. No complications occurred during the healing period. An excellent functional and aesthetic result was achieved with minimal bone resorption and soft tissue recession at 12 months follow-up. This report describes the successful clinical use of an immediate, single-stage, truly anatomical root-analogue zirconia implant for the replacement of a single-rooted tooth. This novel approach is minimally invasive. 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 and cost-saving with good patient acceptance as there is no need for bone drilling, sinus lift, bone augmentation, or other traumatic procedures.
