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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02102360
Other study ID # Mist2014
Secondary ID
Status Completed
Phase Phase 4
First received March 26, 2014
Last updated March 29, 2014
Start date March 2012
Est. completion date December 2013

Study information

Verified date March 2014
Source University of Sao Paulo
Contact n/a
Is FDA regulated No
Health authority Brazil: National Committee of Ethics in Research
Study type Interventional

Clinical Trial Summary

This clinical study compared a conventional surgical technique (CST) and a minimally invasive surgical technique (MIST) in the regenerative treatment of mandibular furcation defects.


Description:

Using a split-mouth design, fifteen patients with bilateral class II and III furcation defects were treated with MIST (Test Group) or CST (Control Group). Furcation defects in both groups were filled with anorganic bovine bone (ABB) and enamel matrix derivative (EMD). Patient-centered outcomes including analyses of pain, discomfort, edema, hematoma, root hypersensitivity and daily activities interference were recorded using a Visual Analogue Scale seven days after surgeries. Clinical and radiographic parameters were assessed at baseline and 6 months postoperatively. Data were statistically analysed.


Recruitment information / eligibility

Status Completed
Enrollment 15
Est. completion date December 2013
Est. primary completion date November 2013
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

(I) subjects with a diagnosis of periodontitis; (II) presence of one pair of contralateral mandibular molars with buccal / lingual furcation defects; (III) non-smokers; (IV) plaque index < 20%.

Exclusion Criteria:

(I) patients that presented systemic disease; (II) had taken antibiotics in the past 6 months prior to surgery; (III) pregnant women or lactating mothers; (IV) molars with periapical disease; (V) cervical restorations or prosthesis closer than 1 mm to fornix; (VI) lingual furcation defects presenting gingival recession (GR)

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Investigator, Outcomes Assessor), Primary Purpose: Treatment


Intervention

Device:
Anorganic Bovine Bone
used to improve periodontal regenerative procedures.
Enamel Matrix Derivative
used to improve periodontal regenerative procedures.

Locations

Country Name City State
Brazil Department of Oral & Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo Ribeirao Preto Sao Paulo

Sponsors (1)

Lead Sponsor Collaborator
University of Sao Paulo

Country where clinical trial is conducted

Brazil, 

References & Publications (14)

Cortellini P, Prato GP, Tonetti MS. The modified papilla preservation technique. A new surgical approach for interproximal regenerative procedures. J Periodontol. 1995 Apr;66(4):261-6. — View Citation

Cortellini P, Tonetti MS. A minimally invasive surgical technique with an enamel matrix derivative in the regenerative treatment of intra-bony defects: a novel approach to limit morbidity. J Clin Periodontol. 2007 Jan;34(1):87-93. — View Citation

Cortellini P, Tonetti MS. Focus on intrabony defects: guided tissue regeneration. Periodontol 2000. 2000 Feb;22:104-32. Review. — View Citation

Cortellini P, Tonetti MS. Microsurgical approach to periodontal regeneration. Initial evaluation in a case cohort. J Periodontol. 2001 Apr;72(4):559-69. — View Citation

Cortellini P, Tonetti MS. Minimally invasive surgical technique and enamel matrix derivative in intra-bony defects. I: Clinical outcomes and morbidity. J Clin Periodontol. 2007 Dec;34(12):1082-8. Epub 2007 Oct 22. — View Citation

Döri F, Arweiler NB, Szántó E, Agics A, Gera I, Sculean A. Ten-year results following treatment of intrabony defects with an enamel matrix protein derivative combined with either a natural bone mineral or a ß-tricalcium phosphate. J Periodontol. 2013 Jun;84(6):749-57. doi: 10.1902/jop.2012.120238. Epub 2012 Aug 8. — View Citation

Hammarström L, Heijl L, Gestrelius S. Periodontal regeneration in a buccal dehiscence model in monkeys after application of enamel matrix proteins. J Clin Periodontol. 1997 Sep;24(9 Pt 2):669-77. — View Citation

Hammarström L. Enamel matrix, cementum development and regeneration. J Clin Periodontol. 1997 Sep;24(9 Pt 2):658-68. Review. — View Citation

Heijl L. Periodontal regeneration with enamel matrix derivative in one human experimental defect. A case report. J Clin Periodontol. 1997 Sep;24(9 Pt 2):693-6. — View Citation

Martin M, Gantes B, Garrett S, Egelberg J. Treatment of periodontal furcation defects. (I). Review of the literature and description of a regenerative surgical technique. J Clin Periodontol. 1988 Apr;15(4):227-31. Review. — View Citation

Polimeni G, Xiropaidis AV, Wikesjö UM. Biology and principles of periodontal wound healing/regeneration. Periodontol 2000. 2006;41:30-47. Review. — View Citation

Tonetti MS, Fourmousis I, Suvan J, Cortellini P, Brägger U, Lang NP; European Research Group on Periodontology (ERGOPERIO). Healing, post-operative morbidity and patient perception of outcomes following regenerative therapy of deep intrabony defects. J Clin Periodontol. 2004 Dec;31(12):1092-8. — View Citation

Tsao YP, Neiva R, Al-Shammari K, Oh TJ, Wang HL. Factors influencing treatment outcomes in mandibular Class II furcation defects. J Periodontol. 2006 Apr;77(4):641-6. — View Citation

Wang HL, Greenwell H, Fiorellini J, Giannobile W, Offenbacher S, Salkin L, Townsend C, Sheridan P, Genco RJ; Research, Science and Therapy Committee. Periodontal regeneration. J Periodontol. 2005 Sep;76(9):1601-22. Review. — View Citation

* Note: There are 14 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Other Digital subtraction radiography density gain The radiographs were obtained with the paralleling technique employing an x-ray unit and a digital sensor . Customized radiographic holders for each patient . Digital subtraction radiographs (DSR) were performed using a specific software. All pairs of baseline and 6-month radiographs for each treated site were then subtracted.
Standardized regions of interest (ROIs) were select for each subtracted digital image: (1) placed in the bone's most coronal and central aspect of the furcation defect; and (2) placed at a distant untreated site acting as a radiographic control. The ROIs were not superimposed on any portion of the tooth surface. A software (Image Tool for Windows, Version 3.0, USA) was used to assess radiographic density changes that occurred in ROIs.
baseline and 6 months No
Primary Horizontal clinical attachment level (HCAL) The clinical measure HCAL was assessed and recorded by an experienced periodontist, blinded to the procedures to assess the efficacy of surgical procedures. baseline and 6 months after surgical procedure Yes
Secondary Pain Scores on the Visual Analogue Scale 7 days after surgery No
Secondary Discomfort Scores on the Visual Analogue Scale 7 days after surgery No
Secondary Edema Scores on the Visual Analogue Scale 7 days after surgery No
Secondary Hematoma Scores on the Visual Analogue Scale 7 days after surgery No
Secondary Root Hypersensitivity Scores on the Visual Analogue Scale 7 days after surgery No
Secondary Daily Activities Interference Scores on the Visual Analogue Scale 7 days after surgery No
Secondary Vertical clinical attachment level (VCAL) The clinical measure HCAL was assessed and recorded by an experienced periodontist, blinded to the procedures to assess the efficacy of surgical procedures. baseline and 6 months No
Secondary Probing pocket depth (PPD) The clinical measure HCAL was assessed and recorded by an experienced periodontist, blinded to the procedures to assess the efficacy of surgical procedures baseline and 6 months No
Secondary Gingival recession The clinical measure HCAL was assessed and recorded by an experienced periodontist, blinded to the procedures to assess the efficacy of surgical procedures baseline and 6 months No
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