Soft Tissue Preservation and Crestal Bone Loss Around Single-Tooth Implants

Abstract Maintenance of interdental soft tissue and the need for esthetics are being increasingly recognized as important criteria for implant success. Statistically significant correlations have been found between the incidence of implant failure and vertical bone loss adjacent to implants. Thus, it is widely recognized that peri-implant bone resorption before loading may compromise implant success. This study aims to evaluate the effect of flap elevation on peri-implant bone loss during the healing period. Twenty sites around 10 implants were included in the study, and the effect of 2 different flap designs on the crestal height of bone was evaluated. The results of the study have shown that flap elevation can lead to increased bone loss during the healing period, with statistically significant results up to the 90-day period.

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Evaluation of Crestal Bone Resorption around Dental Implants in Flapped and Flapless Surgical Techniques Depending on Cone Beam CT Scan (Comparative Study)

Journal of Baghdad College of Dentistry ◽

10.26477/jbcd.v31i4.2713 ◽

2019 ◽

Vol 31 (4) ◽

Author(s):

Mustafa A Al Najjar ◽

Sahar Sh Al Adili

Keyword(s):

Bone Resorption ◽

Bone Loss ◽

Dental Implants ◽

Surgical Approach ◽

Control Group ◽

Term Survival ◽

Implant Placement ◽

Healing Period ◽

Crestal Bone Loss ◽

Significant Difference

Background: The long term survival of dental implants is evaluated by the amount of crestal bone loss around the implants. Some initial loss of bone around dental implants is generally expected. There is reason to believe that reflecting a mucoperiosteal flap promotes crestal bone loss in the initial phase after an implant has been inserted. The surgical placement of a dental implant fixture is constantly changing and in recent years, there has been some interest in developing techniques that minimize the invasive nature of the procedure, with flapless implant surgery being advocated. The purpose of this study was to compare the radiographic level of the peri- implant bone after implant placement between traditional flapped surgery and flapless approach depending on CBCT during 24 weeks healing period. Materials and Methods: A total of 25 Iraqi patients with an age ranged of 20-60 years who received 46 implants. Were randomized into two groups: control group which involved 27 implants inserted by conventional flapped surgical approach and study group which involved 19 implants inserted by flapless surgical approach. The bone level was measured by CBCT for each implant at buccal and palata/lingual sides at two times, immediately after implant placement (base line data), and after 24 weeks healing period. Results: There was no significant difference between study (flapless) and control (flapped) groups in the mean of total crestal bone resorption for buccal and palatal side after 24 weeks from implant placement (P= 0.393 for buccal side and P= 0.214 for palatal side). There was highly significant difference between buccal and palatal side regarding crestal bone loss around implants (P = 0.001) Conclusions: Bone resoption around dental implants placed with conventional flap surgery compared to flapless surgery does not seem to be influenced during the healing period before implant loading.

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SEDIMENT COMPOSITION OF BURGESS SHALE TYPE LAGERSTÄTTEN: IMPLICATIONS FOR SOFT-TISSUE PRESERVATION

10.1130/abs/2016am-286265 ◽

2016 ◽

Author(s):

Ross P. Anderson ◽

◽

Nicholas J. Tosca ◽

Robert R. Gaines ◽

Derek E.G. Briggs

Keyword(s):

Soft Tissue ◽

Tissue Preservation ◽

Burgess Shale ◽

Sediment Composition ◽

Soft Tissue Preservation

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Soft tissue preservation of the cranial crest of the pterosaurGermanodactylusfrom Solnhofen

Journal of Vertebrate Paleontology ◽

10.1671/0272-4634(2002)022[0043:stpotc]2.0.co;2 ◽

2002 ◽

Vol 22 (1) ◽

pp. 43-48 ◽

Cited By ~ 22

Author(s):

S. Christopher Bennett

Keyword(s):

Soft Tissue ◽

Tissue Preservation ◽

Soft Tissue Preservation

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Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies: Application to the Tyrolean Iceman

RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren ◽

10.1055/s-0043-116668 ◽

2017 ◽

Vol 189 (12) ◽

pp. 1152-1160

Author(s):

Stephanie Panzer ◽

Patrizia Pernter ◽

Dario Piombino-Mascali ◽

Rimantas Jankauskas ◽

Stephanie Zesch ◽

...

Keyword(s):

Soft Tissue ◽

Scoring System ◽

Soft Tissues ◽

Whole Body ◽

Slice Thickness ◽

Tissue Preservation ◽

Soft Tissue Preservation ◽

Whole Body Ct ◽

Organ Systems ◽

Tyrolean Iceman

Purpose Soft tissues make a skeleton into a mummy and they allow for a diagnosis beyond osteology. Following the approach of structured reporting in clinical radiology, a recently developed checklist was used to evaluate the soft tissue preservation status of the Tyrolean Iceman using computed tomography (CT). The purpose of this study was to apply the “Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies” to the Tyrolean Iceman, and to compare the Iceman’s soft tissue preservation score to the scores calculated for other mummies. Materials and Methods A whole-body (CT) (SOMATOM Definition Flash, Siemens, Forchheim, Germany) consisting of five scans, performed in January 2013 in the Department of Radiodiagnostics, Central Hospital, Bolzano, was used (slice thickness 0.6 mm; kilovolt ranging from 80 to 140). For standardized evaluation the “CT Checklist and Scoring System for the Assessment of Soft Tissue Preservation in Human Mummies” was used. Results All checkpoints under category “A. Soft Tissues of Head and Musculoskeletal System” and more than half in category “B. Organs and Organ Systems” were observed. The scoring system accounted for a total score of 153 (out of 200). The comparison of the scores between the Iceman and three mummy collections from Vilnius, Lithuania, and Palermo, Sicily, as well as one Egyptian mummy resulted in overall higher soft tissue preservation scores for the Iceman. Conclusion Application of the checklist allowed for standardized assessment and documentation of the Iceman’s soft tissue preservation status. The scoring system allowed for a quantitative comparison between the Iceman and other mummies. The Iceman showed remarkable soft tissue preservation. Key Points Citation Format

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CT checklist and scoring system for the assessment of soft tissue preservation in human mummies: application to catacomb mummies from Palermo, Sicily

International Journal of Paleopathology ◽

10.1016/j.ijpp.2018.01.003 ◽

2018 ◽

Vol 20 ◽

pp. 50-59 ◽

Cited By ~ 3

Author(s):

Stephanie Panzer ◽

Peter Augat ◽

Albert R. Zink ◽

Dario Piombino-Mascali

Keyword(s):

Soft Tissue ◽

Scoring System ◽

Tissue Preservation ◽

Soft Tissue Preservation

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Guided Tissue Preservation: Clinical Application of a New Provisional Restoration Design to Preserve Soft Tissue Contours for Single-Tooth Immediate Implant Restorations in the Esthetic Area

The International Journal of Periodontics & Restorative Dentistry ◽

10.11607/prd.4692 ◽

2020 ◽

Vol 40 (6) ◽

pp. 869-879

Author(s):

Francesco Amato ◽

Giulia Amato ◽

Giorgio Polara ◽

Giorgio Spedicato

Keyword(s):

Soft Tissue ◽

Clinical Application ◽

Tissue Preservation ◽

Single Tooth ◽

Immediate Implant ◽

Provisional Restoration ◽

Esthetic Area

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Effect of Rough Surface Platforms on the Mucosal Attachment and the Marginal Bone Loss of Implants: A Dog Study

Materials ◽

10.3390/ma13030802 ◽

2020 ◽

Vol 13 (3) ◽

pp. 802 ◽

Cited By ~ 3

Author(s):

Javier Montero ◽

Alberto Fernández-Ruiz ◽

Beatriz Pardal-Peláez ◽

Alvaro Jiménez-Guerra ◽

Eugenio Velasco-Ortega ◽

...

Keyword(s):

Soft Tissue ◽

Bone Resorption ◽

Bone Loss ◽

Linear Regression Analysis ◽

Butt Joint ◽

Marginal Bone Loss ◽

Machined Surface ◽

Bony Plate ◽

Immediate Implants ◽

Tissue Attachment

The preservation of peri-implant tissues is an important factor for implant success. This study aimed to assess the influence of the surface features of a butt-joint platform on soft-tissue attachment and bone resorption after immediate or delayed implant placement. All premolars and first molars of eight Beagle dogs were extracted on one mandible side. Twelve-weeks later, the same surgery was developed on the other side. Five implants with different platform surface configurations were randomly inserted into the post-extracted-sockets. On the healed side, the same five different implants were randomly placed. Implants were inserted 1 mm subcrestal to the buccal bony plate and were connected to abutments. The primary outcome variables were the supracrestal soft tissue (SST) adaptation and the bone resorption related to the implant shoulder. The SST height was significantly larger in immediate implants (IC95% 3.9–4.9 mm) compared to delayed implants (IC95% 3.1–3.5 mm). Marginal bone loss tended to be higher in immediate implants (IC95% 0.4–0.9 mm) than in delayed implants (IC95% 0.3–0.8 mm). Linear-regression analysis suggested that the SST height was significantly affected by the configuration of the platform (0.3–1.9 mm). Roughened surface platforms resulted in higher SST height when compared to machined surface platforms. Marginal bone loss was less pronounced in roughened designs.

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