RETRACTED: A Practice-Based Case Series Evaluation of a Porcine Collagen Matrix to Thicken Soft Tissue, Increase Keratinized Tissue, and Improve Esthetics Around Existing Dental Implants (Clin Adv Periodontics March 28, 2012 [published online ahead of print]; doi: 10.1902/cap.2012.110077)

A anatomia do tecido mole peri-implantar é semelhante à do dente natural, uma vez que apresenta epitélio juncional e tecido conjuntivo. O selamento peri-implantar é estabelecido pela mucosa ceratinizada que previne a migração apical da margem gengival, mantendo a arquitetura tecidual e estética vermelha ao redor dos implantes osseointegráveis. O presente trabalho objetivou relatar um caso clínico de reconstrução de tecido mole previamente a cirurgia óssea reconstrutiva para a instalação de implante osseointegrável. Após a reconstrução do tecido mole observou-se que houve um satisfatório ganho de altura e espessura tecidual. Foi obtido um volume tecidual suficiente para regularização do zênite gengival e considerável volume de mucosa ceratinizada foi obtida previamente a cirurgia reconstrutiva.Descritores: Implantes Dentários; Periodontia; Reabilitação Bucal.ReferênciasMutthineni RB, Dudala RB, Ramisetty A. Esthetic root coverage with double papillary subepithelial connective tissue graft: a case report. Case Rep Dent. 2014;2014:509319.Peñarrocha MA, Carrillo C, Boronat A,Martí EM. Level of satisfaction in patients with maxillary mull-arch fixed protheses: zigomatic versus convencional implants. Int J Oral Maxillofac Implants. 2007;22(5):769-73.Ponsi J, Lahti S, Rissanen H, Oikarinen K. Change in subjective oral health after single dental implant treatment. Int J Oral Maxillofac Implants. 2011;26(3):571-77.Man Y, Wang Y, Qu Y, Wang P, Gong P. A palatal roll envelope technique for peri-implant mucosa reconstruction: a prospective case series study. Int J Oral Maxillofac Surg. 2013;42(5):660-65.Schneider D, Grunder U, Ender A, Hämmerle CH, Jung RE. Volume gain and stability of peri-implant tissue following bone and soft tissue augmentation: 1-year results from a prospective cohort study. Clin Oral Implants Res. 2011;22(1):28-37.Evans CD, Chen ST. Esthetic outcomes of immediate implant placements. Clin Oral Implants Res. 2008;19(1):73-80.Grover HS, Yadav A, Yadav P, Nanda P. Free gingival grafting to increase the zone of Keratinized tissue around implants. Int J Oral Implant Clinical Res. 2011;2(2):117-20.Almeida JM, Novaes VN, Faleiros PL, Macarimi VC, Bosco AF, Theodoro LH et al. Aumento de gengiva ceratinizada em mucosa peri-implantar. Rev odontol UNESP. 2012;41(5):365-69.Langer B, Langer L. Overlapped flap: a surgical modification for implant fixture installation. Int J Periodontics Restorative Dent. 1990;10(3):208-15.Raghoebar GM, Meijer HJA, van Minnen B, Vissink A. Immediate Reconstruction of Failed Implants in the Esthetic Zone Using a Flapless Technique and Autogenous Composite Tuberosity Graft. J Oral Maxillofac Surg. 2018;76(3):528-33.Chung DM, Oh TJ, Shotwell JL, Misch CE, Wang HL. Significance of keratinized mucosa in maintenance of dental implants with different surfaces. J Periodontol. 2006;77(8):1410-20.Park JC , Yang KB, Choi Y , Kim YT , Jung UW , Kim CS et al. A simple approach to preserve keratinized mucosa around implants using a pre-fabricated implant-retained stent: a report of two cases. J Periodontal Implant Sci. 2010; 40(4):194-200.Wennström JL, Bengazi F, Lekholm U. The influence of the masticatory mucosa on the peri-implant soft tissue condition. Clin Oral Implants Res. 1994;5(1):1-8. Bengazi F, Wennström JL, Lekholm U. Recession of the soft tissue margin at oral implants. A 2-year longitudinal prospective study. Clin Oral Implants Res. 1996;7(4):303-10.Bouri A Jr, Bissada N, Al-Zahrani MS, Faddoul F, Nouneh I. Width of keratinized gingiva and the health status of the supporting tissues around dental implants. Int J Oral Maxillofac Implants. 2008;23(2):323-26.Fu JH, Su CY, Wang HL. Esthetic soft tissue management for teeth and implants. J Evid Based Dent Pract. 2012;12(3 Suppl):129-42.Marquez IC. The role of keratinized tissue and attached gingiva in maintaining periodontal/peri-implant health. Gen Dent. 2004;52(1):74-9.

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Periimplant soft tissue volume changes after connective tissue grafting. The autologous connective tissue graft vs. the porcine collagen matrix. A clinical follow-up case series

Clinical Oral Implants Research ◽

10.1111/clr.187_13358 ◽

2018 ◽

Vol 29 ◽

pp. 302-302

Author(s):

Patrick Brückbauer ◽

Karl Schlegel ◽

Friedrich-Wilhelm Neukam ◽

Manfred Wichmann ◽

Ragai Matta ◽

...

Keyword(s):

Soft Tissue ◽

Connective Tissue ◽

Case Series ◽

Collagen Matrix ◽

Volume Changes ◽

Tissue Volume ◽

Connective Tissue Graft ◽

Soft Tissue Volume ◽

Porcine Collagen

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Use of a Collagen Matrix as a Substitute for Free Mucosal Grafts in Pre-Prosthetic Surgery: 1 Year Results From a Clinical Prospective Study on 15 Patients

The Open Dentistry Journal ◽

10.2174/1874210601610010395 ◽

2016 ◽

Vol 10 (1) ◽

pp. 395-410 ◽

Cited By ~ 7

Author(s):

Carlo Maiorana ◽

Mario Beretta ◽

Luca Pivetti ◽

Enrico Stoffella ◽

Giovanni B. Grossi ◽

...

Keyword(s):

Soft Tissue ◽

Dental Implants ◽

Collagen Matrix ◽

Point Of View ◽

High Morbidity ◽

Clinical Appearance ◽

Great Achievement ◽

Keratinized Tissue ◽

Major Interest ◽

The Matrix

Background: The presence of keratinized tissue around dental implants is more than desirable either from a functional and aesthetic point of view, making soft tissue grafting a common practice in implant rehabilitation. Autogenous soft tissue grafting procedures are usually associated with high morbidity. Aim of this study was to assess the efficacy of a xenogeneic collagen matrix as a substitute for soft tissue grafting around dental implants. Methods: 15 consecutive patients underwent a vestibuloplasty and grafting, both in the mandible and the maxilla, with a collagen matrix. Results: The primary endpoint was to evaluate the resorption of the graft along with the re-epithelization grafted area. The percentage of the resorption was 44,4%, with a mean gain in vestibular height of 3 mm. Secondary endpoints evaluated the clinical appearance, the hemostatic effect and the post-operative pain. All subjects referred minimal pain with no bleeding. No adverse reaction nor infection were noted. Conclusion: This study showed that the used collagen matrix can find major interest in those patients who need a greater aesthetic outcome as the matrix has a perfect integration with the surrounding tissues. Furthermore it is strongly recommended for those patients who can bear little pain. Clinical Significance: Post-operative morbidity of autologous grafts is the biggest concern of this type of surgery. The possibility to use a soft tissue substitute is a great achievement as morbidity decreases and bigger areas can be treated in a single surgery. The present study showed the efficacy of a collagen matrix as this kind of substitute.

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Cartilage Sparing Septal Perforation Repair using Rotation Flaps and a Collagen Interposition Graft: A Case Series

Annals of Otology Rhinology & Laryngology ◽

10.1177/0003489420970592 ◽

2020 ◽

pp. 000348942097059

Author(s):

Benjamin G. Hunter

Keyword(s):

Nasal Obstruction ◽

Surgical Repair ◽

Case Series ◽

Collagen Matrix ◽

Septal Perforation ◽

Surgical Success ◽

Interposition Graft ◽

Patient Reported ◽

Septal Perforations ◽

Porcine Collagen

Objective: Septal Perforations may be asymptomatic or can cause significant problems including nasal obstruction, crusting, bleeding, whistling and in severe cases a change in nasal shape and even pain. Method: The author would like to present a single surgeon case series of septal perforation repairs, managed using an endo-nasal technique, with no external scars. There were 54 consecutive cases between 2011 and 2017. The repair was carried out using mucosal rotation flaps with an interposition graft of porcine collagen matrix. Patients were grouped according to the size of the perforation as measured at the time of the surgery. The patients were then clinically followed up for 1 year, and the recorded outcome measures were: the success of the surgical repair and the patient reported symptoms. Results: Surgical success was 70% up to 1 cm diameter, 77% from 1 to 2 cm and 82% in perforations from 2 to 3 cm in diameter. No perforation over 3 cm in diameter was successfully closed. Patients were rendered asymptomatic even if the perforation was not closed in between 81% and 91% of patients up to perforations 3 cm in size. Over 3 cm in size 50% of patients reported being asymptomatic. Conclusions: This technique is an effective and low morbidity option for patients with small to medium sized septal perforations. For perforations over 3 cm in diameter other options may be more suitable.

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