Expansion of the Zone of Keratinized Tissue for Healthy Implant Abutment Interface Using De-epithelialized Amnion/Chorion Allograft

Angelis, Nicola De; Kassim, Zethy Hanum Mohamed; Frosecchi, Massimo; Signore, Antonio

doi:10.11607/prd.3757

Cited by 6 publications

(18 citation statements)

References 5 publications

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“…In 11 studies, patients had a CM allograft 3,[52][53][54][55][56]58,[60][61][62]66 whereas in the other 10 studies an ACM allograft was performed. 37,57,59,[63][64][65][67][68][69][70] Membranes were freeze-dried in seven studies, 3,52,56,58,[60][61][62] decellularized then freeze-dried in one study, 70 de-epithelialized and dehydrated by the Purion process in nine studies, 37,57,59,[63][64][65][67][68][69] and just dehydrated in two studies. 53,55 In two publications, the preservation methods were not mentioned.…”

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

“…The membranes supplied by the Tata Memorial Hospital tissue bank were irradiated with γ radiation, 3,[52][53][54][55][56]58,[60][61][62]66 Kakabadze et al used γ rays at a dose of 15 kGy, 70 and the BioXclude membranes were sterilized by γ rays or irradiated by electron beams at a dose of approximately 17.5 kGy. 37,57,59,[63][64][65][67][68][69] The membranes were used in monolayer in all studies, but some authors specified that if the membrane folds on itself together, it was not unfolded. 37 None of the selected articles mentioned which side of the membrane was applied in contact with the defect.…”

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

“…However, some authors were contacted via email and the mentioned that they placed no importance on the side during implantation. 3,53,56,58,[60][61][62]64,67 In only four studies the membrane was sutured to be stabilized, 55,66,68,70 otherwise it was just applied to the surgical site. 3,37,[52][53][54][56][57][58][59][60][61][62][63][64][65]67,69 The membrane was left exposed voluntarily in four studies.…”

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

“…3,37,[52][53][54][56][57][58][59][60][61][62][63][64][65]67,69 The membrane was left exposed voluntarily in four studies. [65][66][67][68] In most studies, the membranes were applied dried and were then rehydrated by the blood during the surgical procedure. One author rehydrated the membrane in 0.9% saline for 30 min before grafting.…”

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

“…This selection was separated accordingly into three main areas: periodontal surgery, 3,37,[52][53][54][55][56][57][58][59][60][61][62][63][64] implant and preimplant surgery [65][66][67][68][69] and bone reconstruction following tumor resection. 70…”

Section: Search Outcomesmentioning

confidence: 99%

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Chorion and amnion/chorion membranes in oral and periodontal surgery: A systematic review

et al. 2020

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The aim of this study was to perform a systematic review on the clinical applications where chorion membrane (CM) and amnion/chorion membrane (ACM) were used for oral tissue regeneration procedures. Selection of articles was carried out by two evaluators in Pubmed and Scopus databases, and Outcomes (PICO) method was used to select the relevant articles. Clinical studies reporting the use of CM or ACM for oral soft and hard tissue regeneration were included. The research involved 21 studies conducted on 375 human patients. Seven clinical applications of CM and ACM in oral and periodontal surgery were identified: gingival recession treatment, intrabony and furcation defect treatment, alveolar ridge preservation, keratinized gum width augmentation around dental implants, maxillary sinus membrane repair, and large bone defect reconstruction. CM and ACM were compared to negative controls (conventional surgeries without membrane) or to the following materials: collagen membranes, dense polytetrafluoroethylene membranes, platelet-rich fibrin membranes, amnion membranes, and to a bone substitute. Several studies support the use of CM and ACM as an efficient alternative to current techniques for periodontal and oral soft tissue regeneration procedures. However, further studies are necessary to increase the level of evidence and especially to demonstrate their role for bone regeneration.

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Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

Section: Methods Of Cm/acm Preservation and Usementioning

confidence: 99%

Section: Search Outcomesmentioning

confidence: 99%

See 3 more Smart Citations

Chorion and amnion/chorion membranes in oral and periodontal surgery: A systematic review

et al. 2020

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Regenerative Endodontic Therapy in Mature Teeth Using Human-Derived Composite Amnion-Chorion Membrane as a Bioactive Scaffold: A Pilot Animal Investigation

Kim

Solomon

2021

Journal of Endodontics

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Evaluation of Keratinized Tissue Augmentation Using Amnion/Chorion Allograft vs. Autogenous Connective Tissue in Implant Therapy: A Retrospective Study

De Angelis,

Pesce,

Kassim

et al. 2024

Preprint

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Objectives: Successful implant therapy must also ensure the integration of the soft tissues around the crown/abutment emergence profile. The existing literature does not consistently agree on the necessity of a minimal amount of keratinized tissue (KT), though it appears advantageous for the long-term stability and aesthetics of implants. The purpose of this clinical retrospective study is to compare the effectiveness of amnion/chorion membrane and autogenous subepithelial connective tissue in increasing the keratinized mucosa and maintaining it over a 5-year follow-up. Methods: Twenty patients who had previously undergone implant surgery were included in the study. Ten patients had received the allograft (Group 1) and ten had received autogenous connective tissue (Group 2).An independent examiner retrospectively analyzed the patient records at 7, 15, and 60 days, and five years post-procedure. Data from these observations were collected and analyzed using SPSS Statistics, version 25. Descriptive statistical analysis was conducted. Results: All patients exhibited an increase in KT. For Group 1, the mean KT width measurements were 1.27 ± 0.46 mm at the initial evaluation, increasing to 2.00 ± 0.38 mm, 2.80 ± 0.78 mm, 3.27 ± 0.80 mm, and 3.01 ± 0.68 mm at 7, 15, and 60 days post-surgery (with prosthesis delivery on day 60), and five years after prosthetic rehabilitation, respectively. Conclusions: Within the limitations of this retrospective clinical study, both amnion/chorion and connective tissue show significant potential for KT expansion when used in conjunction with implant surgery. Considering the minimally invasive approach, focusing future research on the use of allografts or xenografts appears justified. Clinical Relevance: the use of allografts , due their low morbidity, and acceptable results should be considered as a viable option for soft tissues augmentations.

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Expansion of the Zone of Keratinized Tissue for Healthy Implant Abutment Interface Using De-epithelialized Amnion/Chorion Allograft

Cited by 6 publications

References 5 publications

Chorion and amnion/chorion membranes in oral and periodontal surgery: A systematic review

Chorion and amnion/chorion membranes in oral and periodontal surgery: A systematic review

Regenerative Endodontic Therapy in Mature Teeth Using Human-Derived Composite Amnion-Chorion Membrane as a Bioactive Scaffold: A Pilot Animal Investigation

Evaluation of Keratinized Tissue Augmentation Using Amnion/Chorion Allograft vs. Autogenous Connective Tissue in Implant Therapy: A Retrospective Study

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