The Interface Between Retained Roots and Dental Implants: A Histologic Study in Baboons

Gray, Jonathan L.; Vernino, Arthur R.

doi:10.1902/jop.2004.75.8.1102

Cited by 31 publications

(39 citation statements)

References 11 publications

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“…16,17 Thus, the more staggering finding was the presence of a cementum-like layer covering the implant at longer times when titanium established contact with the periodontal ligament. Although this possibility has been stated previously by some authors, [18][19][20][21] the formation of a layer of cementum in their studies was restricted to areas in which the implant touched the root, which was not necessarily the case in our study results. The earlier times exhibited areas of periodontal ligament in which collagen bundles with numerous fibroblasts appeared in close relation to the mini-implant.…”

Section: Discussioncontrasting

confidence: 42%

“…25 The cementum-like layer contained some collagen fibrils into its milieu; this is somewhat similar to the acellular extrinsic fiber cementum that is formed by fibroblasts during cementogenesis. 20 Nevertheless, although the layer had a cementum-like appearance, it did not contain inserted collagen bundles (Sharpey's fibers), leaving it toward the adjacent periodontal ligament. Thus, it was not a true periodontal ligament if one takes into consideration that a functional periodontal ligament has its collagen bundles inserted into its neighboring hard tissues.…”

Section: Discussionmentioning

confidence: 99%

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Ultrastructure of the Interface between Periodontal Tissues and Titanium Mini-Implants

Rinaldi¹,

Arana-Chavez²

2010

The Angle Orthodontist

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Objective: To describe the ultrastructure of the interface between periodontal tissues and titanium mini-implants in rat mandibles. Materials and Methods: A titanium mini-implant was placed between the buccal roots of the mandibular first molar of 24 adult rats. After 21, 30, 45, 60, 90, and 120 days of implantation, the mandibular portion was removed and fixed in cacodylate-buffered 2% glutaraldehyde + 2.5% formaldehyde. The material was decalcified and processed for scanning and transmission electron microscopy. Results: Ultrastructural analysis revealed a thin cementum-like layer at longer times after implantation at the areas in which the periodontal ligament was in contact with the implant. Conclusions: The alveolar bone and the periodontal ligament reorganized their constituents around the implant, and a thin cementum-like layer was formed at longer times after implantation at the areas in which the periodontal ligament was in contact with the implant. (Angle Orthod. 2010;80:459-465.)

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Section: Discussioncontrasting

confidence: 42%

Section: Discussionmentioning

confidence: 99%

Ultrastructure of the Interface between Periodontal Tissues and Titanium Mini-Implants

Rinaldi¹,

Arana-Chavez²

2010

The Angle Orthodontist

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“…The patient may thus desire a more straightforward solution; the simplest would be to place an implant through the residual root without removing it. However, practitioners rarely consider this approach because it is generally accepted that implants should come in contact only with bone to the exclusion of any other dental tissue, including residual roots …”

Section: Introductionmentioning

confidence: 99%

“…However, one can find in the international literature a growing corpus of papers dealing with implants placed in contact with tissues other than bone . Since 2009, our group has been publishing case reports of implants placed through ankylosed and impacted teeth .…”

Section: Introductionmentioning

confidence: 99%

Unconventional Implant Placement Part III: Implant Placement Encroaching upon Residual Roots – A Report of Six Cases

Szmukler‐Moncler

Davarpanah

et al. 2014

Clin Implant Dent Rel Res

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Several types of new implant-tissue interfaces were created in addition to the classical implant-bone interface, but this did not seem to jeopardize implant integration. Reports of more cases with a longer follow-up are needed before this protocol can be endorsed for routine application. Nonetheless, if confirmed as acceptable, this protocol might open intriguing possibilities; it might also lead to revision of one of the leading concepts in dental implantology.

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“…Some authors in a systematic review regarding accuracy and clinical application of computer-guided template-based implants stated that the reliability of the computer-guided systems is insufficient and that 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Proper clinical practice in dental implantology rules out leaving any root fragment at the osteotomy site that comes in contact with an implant 11 . Success is also reflected in the survival rate and is determined by factors such as, the fixtures proper placement in the oral cavity to avoid marginal bone loss and providing a prosthetic design which can aid in sufficient oral home-care and routine professional maintenance 8 .…”

Section: Discussionmentioning

confidence: 99%

Residual Roots as an Anatomical Guide for Implant Placement: Case Series With Two-Year Follow-up

Mahesh¹,

Kurtzman²,

Schwartz

et al. 2016

Journal of Oral Implantology

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As placement of implants into immediate sites involves management of the remaining root structure, these residual roots may be used as a guide for the development of osteotomy. This aids in implant positioning and prevents drill slippage into the residual root spaces during osteotomy drilling. Following completion of the osteotomy, the remaining root structure is extracted prior to implant placement into the site. The aim of this study is to assess the success rate of implants when the residual roots were used as anatomical guides for osteotomy. One hundred implants were placed in 57 patients, and 4 different types of implants were used: 47 Bioner TOP DM implants, 20 Nobel Biocare Replace implants, 25 Biohorizons Tapered Internal implants (Birmingham, Ala), and 8 Alpha-Bio Tec SPI Implants. The implants were placed into 57 patients. Osteotomies were placed through intact residual roots, which acted as anatomical guides for implant surgical placement. Patients had a follow-up period of 2 years, and in that time none reported discomfort after implant placement. There were no signs of peri-implantitis observed in any of the patients. Of all the implants placed, the Bioner TOP DM implant showed the least amount of crestal bone loss. Placing implants through residual roots as an anatomical guide is a useful technique that shows good results over a 2-year follow-up period.

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The Interface Between Retained Roots and Dental Implants: A Histologic Study in Baboons

Abstract: Unintentional placement of dental implants into retained root fragments did not result in any inflammation and may have produced cementum or cementum-like matrix on the titanium surface adjacent to the periodontal ligament of the retained root tip.

Cited by 31 publications

References 11 publications

Ultrastructure of the Interface between Periodontal Tissues and Titanium Mini-Implants

Ultrastructure of the Interface between Periodontal Tissues and Titanium Mini-Implants

Unconventional Implant Placement Part III: Implant Placement Encroaching upon Residual Roots – A Report of Six Cases

Residual Roots as an Anatomical Guide for Implant Placement: Case Series With Two-Year Follow-up

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