Naslov
Autologous tooth roots for lateral alveolar ridge augmentation – A pilot clinical study

Autori
Smojver, Igor ; Sušić, Mato ; Gabrić, Dragana ; Vuletić, Marko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni

Izvornik
28th Annual Scientific Meeting of the European Association for Osseointegration, 26‐28 September 2019. U: Clinical Oral Implants Research 2019. vol.30. br.S19 / Heitz-Mayfield, Liza - Hong Kong : John Wiley & Sons, 2019, 390-390

Skup
28th Annual Scientific Meeting of the European Association for Osseointegration

Mjesto i datum
Lisabon, Portugal, 26.09.2019. - 28.09.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
augmentation ; tooth ; bone graft

Sažetak
Background : A recent series of animal studies employing a canine model investigated the efficacy of extracted tooth roots for lateral alveolar ridge augmentation and two- stage implant placement Histological, immunohistochemical and micro- computed tomographic analyses of various outcome measures did not reveal any significant differences between tooth roots and autologous bone grafts used for lateral ridge augmentation. (Becker et al., 2017 ; Schwarz, Golubovic, Becker, et al., 2016 ; Schwarz, Golubovic, Mihatovic, et al., 2016). Aim/Hypothesis : The aim of this pilot clinical study was to assess efficacy and predictability of autologous autologous tooth roots for lateral alveolar ridge augmentation and two- stage implant placement. Material and Methods : The patient had to be fully able to understand the nature of the proposed surgery and able to sign an informed consent form. Inclusion criteria were : age 18 to 60 years, candidate for lateral ridge augmentation, insufficient bone ridge width at the recipient site for implant placement, sufficient bone height at the recipient site for implant placement and healthy oral mucosa. Preoperative CBCT was made for every patient. After surgical removal of impacted tooth or periodontally compromised tooth and during the same surgery, the crown was decapitated at the cemento- enamel junction using a rotating carbide bur under water cooling and the exposed pulp was preserved. The separated tooth root was adapted to match the size and shape of the bone defect area. To improve ankylosis between the graft and the defect site, the layer of cementum at the respective downward aspects of the root was carefully removed using a diamond bur until the underlying dentin was entirely exposed (Schwarz, Golubovic, Becker, et al., 2016). To improve the contact between tooth roots the recipient site was gently flattened using a round carbide bur under meticulous water cooling. Grafts were drilled and fixed using one to two titanium osteosynthesis screw (1.5 × 9.5 mm, Helmut Zepf, Germany). All patients were provided with a perioperative antibiotic (1 × Amoxicillin with clavulanic acid 2 g) as well as a peri- and postoperative (2 days) antiphlogistic prophylaxis (dexamethasone, total of 16 mg). Analgesics (ibuprofen 600 mg) were prescribed and used as necessary. Suture removal was performed at 10 days postoperative. After 6 months of healing, a mucoperiosteal flap was elevated to expose the target site and after removal of the osteosynthesis screw, commercially available titanium implants (Bone Level ® Tapered SLA ® , Institut Straumann AG, Basel, Switzerland) were inserted. Results : After 6 months CBCT scans were obtained as part of the standard procedure. The radiographic images of the target areas revealed no signs for a graft separation from the recipient site. Clinical re- entry confirmed a homogeneous integration of tooth root grafts in the former defect area. This was evidenced by a firm graft connection to the host bone and a circumferential hard tissue formation. Conclusion and Clinical Implications : Within its limitations, the present pilot clinical study revealed that autologous tooth roots may serve as an alternative graft to support lateral alveolar ridge augmentation and two- stage implant placement.

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

POVEZANOST RADA