Clinical trial NCT06269497: TiO2-scaffolds for Alveolar Ridge Preservation
Official title: TiO2-scaffolds for Alveolar Ridge Preservation
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Alveolar Bone Resorption
Keywords: Scaffold
Bone resorption
Lead sponsor: University of Oslo
Sponsor class: OTHER
First posted: 2024-02-21
Enrollment: 10
Sex: ALL
Minimum age (years): 20
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: Observational study / clinical trial
Primary purpose: OTHER

Brief summary: The goal of this clinical trial is to evaluate the safety of placing TiO2 scaffolds in alveolar ridge and to evaluate if the scaffold material contributes to maintain the anatomy and the volume of the alveolar process after tooth extraction.

Detailed description: The primary objective of the clinical trial is to evaluate the safety of placing TiO2 scaffolds in alveolar ridge.

The secondary objectives are; (1) to assess anatomical changes as measured by intraoral digital scanning at the time of extraction, after 6 months. (2) to evaluate soft tissue inflammation at 1, 2, 4, 12 and 24 weeks post-surgery, (3) to assess the preservation of the alveolar ridge following placement of TiO2 scaffold in the alveolae after tooth extraction, (4) to assess bone mineralization and quantitative healing in bone biopsies obtained at implant installation in the preserved site 6 months following treatment.

Eligibility criteria: Inclusion Criteria:

* Subject must be ≥ 20 years, and present with a molar or premolar planned for extraction

Exclusion Criteria:

* Individuals with medical conditions that may affect soft tissue or bone metabolism
* Previous local radiotherapy
* Current use of chemotherapy
* Systemic long-term corticosteroid treatment.
* Diabetes
* Smokers (\> 10 cigarettes/day).
* Patients with active of untreated periodontal disease.
* Present or past use of bisphosphonate treatment
* Pregnant or nursing subjects
* \> class 2 according to the ASA (American Society of Anesthesiologists) physical status classification
* Acute infection or no apical periodontitis visible on radiograph of tooth planned for extraction.

Primary outcomes:
measure: Adverse reactions
timeFrame: Through study completion, an average of 1 year
Secondary outcomes:
measure: Anatomy
timeFrame: 6 months after surgery
measure: Inflammation
timeFrame: Through study completion, an average of 1 year
measure: Mineralization
timeFrame: Evaluation of the histology, specimens tasken 6 months after surgery.
Other outcomes:
Locations:
city: Oslo
country: Norway
facility: Faculty of Dentistry, University of Oslo
Study officials:
affiliation: University of Oslo
name: Jan Eirik Ellingsen, DDS, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Muller B, Reseland JE, Haugen HJ, Tiainen H. Cell growth on pore-graded biomimetic TiO2 bone scaffolds. J Biomater Appl. 2015 Apr;29(9):1284-95. doi: 10.1177/0885328214559859. Epub 2014 Nov 13.
citation: Tiainen H, Lyngstadaas SP, Ellingsen JE, Haugen HJ. Ultra-porous titanium oxide scaffold with high compressive strength. J Mater Sci Mater Med. 2010 Oct;21(10):2783-92. doi: 10.1007/s10856-010-4142-1. Epub 2010 Aug 14.
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citation: Sabetrasekh R, Tiainen H, Reseland JE, Will J, Ellingsen JE, Lyngstadaas SP, Haugen HJ. Impact of trace elements on biocompatibility of titanium scaffolds. Biomed Mater. 2010 Feb;5(1):15003. doi: 10.1088/1748-6041/5/1/015003. Epub 2010 Jan 7.
citation: Tiainen H, Verket A, Haugen HJ, Lyngstadaas SP, Wohlfahrt JC. Dimensional Ridge Preservation with a Novel Highly Porous TiO(2) Scaffold: An Experimental Study in Minipigs. Int J Biomater. 2012;2012:851264. doi: 10.1155/2012/851264. Epub 2012 Oct 3.
citation: Le Thieu MK, Homayouni A, Haeren LR, Tiainen H, Verket A, Ellingsen JE, Ronold HJ, Wohlfahrt JC, Cantalapiedra AG, Munoz FMG, Mendana MP, Lyngstadaas SP, Haugen HJ. Impact of simultaneous placement of implant and block bone graft substitute: an in vivo peri-implant defect model. Biomater Res. 2021 Nov 25;25(1):43. doi: 10.1186/s40824-021-00245-3.
citation: Thieu MKL, Haugen HJ, Sanz-Esporrin J, Sanz M, Lyngstadaas SP, Verket A. Guided bone regeneration of chronic non-contained bone defects using a volume stable porous block TiO2 scaffold: An experimental in vivo study. Clin Oral Implants Res. 2021 Mar;32(3):369-381. doi: 10.1111/clr.13708. Epub 2021 Jan 28.
citation: Thieu MKL, Stoetzel S, Rahmati M, El Khassawna T, Verket A, Sanz-Esporrin J, Sanz M, Ellingsen JE, Haugen HJ. Immunohistochemical comparison of lateral bone augmentation using a synthetic TiO2 block or a xenogeneic graft in chronic alveolar defects. Clin Implant Dent Relat Res. 2023 Feb;25(1):57-67. doi: 10.1111/cid.13143. Epub 2022 Oct 12.
citation: Pippi R. Post-Surgical Clinical Monitoring of Soft Tissue Wound Healing in Periodontal and Implant Surgery. Int J Med Sci. 2017 Jul 18;14(8):721-728. doi: 10.7150/ijms.19727. eCollection 2017.