Reosseointegration of mechanically disintegrated implants in dogs: Mechanical and histometric analyses

Sungtae Kim, Jung Seok Lee, Ji Wan Hwang, Min Soo Kim, Seongho Choi, Ui-Won Jung

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Objectives: This study evaluated the reosseointegration of implants that had been reinserted following the mechanical disintegration of immature osseointegration in dogs. Materials and methods: Rotationally mobile implants were installed into an oversized drill space in five canine mandibles. After a healing period of 4 weeks, the immature osseointegration of the implant was intentionally disintegrated by the application of a mechanical countertorque and then reinserted at the same site (experimental group); in the control group, the mobile implant remained submerged without any surgical intervention. The animals were euthanized 4 weeks after the disruption of osseointegration. Changes in the implant stability quotient (ISQ) and Periotest value (PTV) were analyzed, and the bone-implant contact (%) was measured histometrically. Results: All experimental and control sites showed successful mechanical stability at 8-week healing period. The mean ISQ was significantly higher in the experimental group than in the control group at 8 weeks (P < 0.01). In histology, immature woven-bone that bridged between the parent bone and the pre-existing residual bone on implant surface could be observed in experimental sites. The mean bone-implant contact was significantly higher in the experimental group than in the control group (P < 0.05). Conclusion: Within the limitation of the small sample used in this study, it is concluded that following the mechanical disruption of osseointegration, an implant can be successfully reosseointegrated with unloaded and submerged healing for a certain period.

Original languageEnglish
Pages (from-to)729-734
Number of pages6
JournalClinical Oral Implants Research
Volume25
Issue number6
DOIs
Publication statusPublished - 2014 Jan 1

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Osseointegration
Dogs
Bone and Bones
Control Groups
Mandrillus
Mandible
Canidae
Histology

All Science Journal Classification (ASJC) codes

  • Oral Surgery

Cite this

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title = "Reosseointegration of mechanically disintegrated implants in dogs: Mechanical and histometric analyses",
abstract = "Objectives: This study evaluated the reosseointegration of implants that had been reinserted following the mechanical disintegration of immature osseointegration in dogs. Materials and methods: Rotationally mobile implants were installed into an oversized drill space in five canine mandibles. After a healing period of 4 weeks, the immature osseointegration of the implant was intentionally disintegrated by the application of a mechanical countertorque and then reinserted at the same site (experimental group); in the control group, the mobile implant remained submerged without any surgical intervention. The animals were euthanized 4 weeks after the disruption of osseointegration. Changes in the implant stability quotient (ISQ) and Periotest value (PTV) were analyzed, and the bone-implant contact ({\%}) was measured histometrically. Results: All experimental and control sites showed successful mechanical stability at 8-week healing period. The mean ISQ was significantly higher in the experimental group than in the control group at 8 weeks (P < 0.01). In histology, immature woven-bone that bridged between the parent bone and the pre-existing residual bone on implant surface could be observed in experimental sites. The mean bone-implant contact was significantly higher in the experimental group than in the control group (P < 0.05). Conclusion: Within the limitation of the small sample used in this study, it is concluded that following the mechanical disruption of osseointegration, an implant can be successfully reosseointegrated with unloaded and submerged healing for a certain period.",
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Reosseointegration of mechanically disintegrated implants in dogs : Mechanical and histometric analyses. / Kim, Sungtae; Lee, Jung Seok; Hwang, Ji Wan; Kim, Min Soo; Choi, Seongho; Jung, Ui-Won.

In: Clinical Oral Implants Research, Vol. 25, No. 6, 01.01.2014, p. 729-734.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Reosseointegration of mechanically disintegrated implants in dogs

T2 - Mechanical and histometric analyses

AU - Kim, Sungtae

AU - Lee, Jung Seok

AU - Hwang, Ji Wan

AU - Kim, Min Soo

AU - Choi, Seongho

AU - Jung, Ui-Won

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AB - Objectives: This study evaluated the reosseointegration of implants that had been reinserted following the mechanical disintegration of immature osseointegration in dogs. Materials and methods: Rotationally mobile implants were installed into an oversized drill space in five canine mandibles. After a healing period of 4 weeks, the immature osseointegration of the implant was intentionally disintegrated by the application of a mechanical countertorque and then reinserted at the same site (experimental group); in the control group, the mobile implant remained submerged without any surgical intervention. The animals were euthanized 4 weeks after the disruption of osseointegration. Changes in the implant stability quotient (ISQ) and Periotest value (PTV) were analyzed, and the bone-implant contact (%) was measured histometrically. Results: All experimental and control sites showed successful mechanical stability at 8-week healing period. The mean ISQ was significantly higher in the experimental group than in the control group at 8 weeks (P < 0.01). In histology, immature woven-bone that bridged between the parent bone and the pre-existing residual bone on implant surface could be observed in experimental sites. The mean bone-implant contact was significantly higher in the experimental group than in the control group (P < 0.05). Conclusion: Within the limitation of the small sample used in this study, it is concluded that following the mechanical disruption of osseointegration, an implant can be successfully reosseointegrated with unloaded and submerged healing for a certain period.

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