A radiographic assessment of progressive loading on bone around single osseointegrated implants in the posterior maxilla

Appleton, Richard S.; Nummikoski, Pirkka V.; Pigno, Mark A.; Cronin, Robert J.; Chung, Kwok Hung

doi:10.1111/j.1600-0501.2004.01089.x

Cited by 48 publications

(45 citation statements)

References 15 publications

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“…This study did not observe statistically significant differences in grey levels in the selected ROIs around implants (crestal, subcrestal, mid-implant, apical-lateral and implant apex) but suggested a strong trend towards gaining more density over time. 16 In our study, using the same ROI areas in SR images, we observed a significant effect of follow-up time, mainly influenced by implant-loading protocol, in all ROI areas except the apical area. Wakoh et al 17 also used the SR technique, successfully detecting peaks of bone change around dental implants.…”

Section: Discussionmentioning

confidence: 54%

“…17,22 Jeffcoat and Reddy 22 had related that quantitative SR could facilitate the study of dental implants in the future because few surrogate outcomes had been developed to replace histology for the determination of osseointegration. More recently, in a clinical study of implants in the posterior maxilla, Appleton et al 16 used the SR method and evidenced less crestal bone loss in progressively loaded implants compared with conventional loaded implants after a 12 month follow-up period. This study did not observe statistically significant differences in grey levels in the selected ROIs around implants (crestal, subcrestal, mid-implant, apical-lateral and implant apex) but suggested a strong trend towards gaining more density over time.…”

Section: Discussionmentioning

confidence: 99%

“…14,15 Similarly, previous studies using digital subtraction radiography (DSR) found a continuous increase in peri-implant bone density over time following implantation. 16,17 However, these studies do not report reliable quantitative measurements and comparison between different loading protocols is not provided. The aim of this study was to assess longitudinal quantitative changes in bone density around different implant loading protocols and implant surfaces, measured by DSR.…”

Section: Introductionmentioning

confidence: 99%

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Digital subtraction radiography evaluation of longitudinal bone density changes around immediate loading implants: a pilot study

Carneiro¹,

Cunha²,

Leles³

et al. 2012

Dentomaxillofacial Radiology

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Objective: The aim of this study was to assess longitudinal quantitative changes in bone density around different implant loading protocols and implant surfaces measured by digital subtraction radiography (DSR). Methods: 12 patients received bilateral homologous standard and TiUniteH (Nobel Biocare, Kloten, Switzerland) single-tooth implants under 2 implant-loading protocols: immediate loading (8 patients, 16 implants, 12 maxillary) and conventional loading (4 patients, 8 implants, 4 maxillary). Standardized periapical radiographs were taken immediately after implant placement (baseline image) and at the 3-month, 6-month and 12-month follow ups. Radiographic images were digitized and submitted to digital subtraction using the DSR systemH (Electro Medical System, Nyon, Switzerland), resulting in three subtracted images. Quantitative analysis of bone density was performed using Image ToolH software (University of Texas Health Science Centre, San Antonio, TX) to assess pixel value changes in five areas around the implants (crestal, subcrestal, medial third, apical-lateral and apical). Results: Repeated-measures analysis of variance showed that grey levels were significantly influenced by follow-up time and implant-loading protocol. A linear increase in grey levels was found for immediate loading (IML) implants and a significant decrease in grey levels was observed in the 12-month follow up for conventional loading implants. No effect of implant surface treatment was observed. Conclusion: In conclusion, IML protocol induced mineral bone gain around single-tooth implants after the first year under function for cases with favourable bone conditions.

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Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Digital subtraction radiography evaluation of longitudinal bone density changes around immediate loading implants: a pilot study

Carneiro¹,

Cunha²,

Leles³

et al. 2012

Dentomaxillofacial Radiology

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“…These data show that the implants were installed in areas that had similar bone density that was not altered by the osseointegration process and prosthetic loading of the implants. A study that evaluates the effects of progressive occlusal loading of the implants compared to conventional loading demonstrated that different types of prosthetic loading presented no difference in bone radiographic density around the implant 23 . This outcome suggests that after the osseointegration period, if prosthetic principles are respected, the occlusal load will not promote changes in the peri-implant bone even around implants with different heights and diameters.…”

Section: Discussionmentioning

confidence: 99%

Clinical comparison of short and conventional implants placed in the posterior region of the mandible. A pilot study

Ibelli

Assaf

Santos

et al. 2017

Rev. odontol. UNESP

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Clinical comparison of short and conventional implants placed in the posterior region of the mandible. A pilot study ResumoObjetivo: Avaliar e correlacionar os valores de densidade óssea radiográfica, altura óssea peri-implantar e de frequência de ressonância nos implantes curtos e convencionais instalados na região posterior da mandíbula após a instalação da prótese provisória. Material e método: Esse estudo piloto clínico prospectivo contou com a participação de 11 pacientes que foram divididos previamente em dois grupos: implantes curtos (n=18) (5,0 x 5,5 mm e 5,0 x 7,0 mm) e implantes convencionais (n=23) (4,0 x 10 mm e 4,0 x 11,5 mm). Foram executadas análise da frequência de ressonância, altura óssea e densidade óssea peri-implantar. Os implantes foram avaliados nos períodos T0 (imediatamente após a instalação do provisório), T1 (após 90 dias) e T2 (após 180 dias). Resultado: Não houve diferenças estatisticamente significativas entre os grupos com relação a densidade óssea radiográfica (152,50 ± 15,39 vs. 157,60 ± 28,46, para implantes convencionais e curtos respectivamente no período T2), estabilidade dos implantes (Implantes convencionais: 66,76 ± 10,39 no período T0 e 61,85 ± 8,38 no período T2 vs. Implantes curtos: 57,50 ± 12,17 no período T0 e 61,53 ± 7,39 no período T2) e quanto a perda óssea periimplantar (0,03 mm vs. -0,17 mm, em implantes convencionais e curtos no período T2, respectivamente). Adicionalmente a isso, não foram detectados correlação significativa entre densidade radiográfica com altura óssea peri-implantar e nem com a frequência de ressonância. Conclusão: Verificou-se que os implantes curtos apresentaram um comportamento semelhante aos implantes de comprimento convencionais com relação à frequência de ressonância, a densidade radiográfica peri-implantar e a manutenção dos níveis ósseos periimplantares.Descritores: Reabsorção óssea; densidade óssea; próteses e implantes. AbstractObjective: To evaluate and correlate the values of radiographic bone density, peri-implant bone height and resonance frequency analysis (RFA) of short or conventional implants placed in the posterior region of the mandible after installing a prosthesis. Material and method: Eleven patients were selected for this prospective parallel pilot study. The prostheses were supported by two types of implants: short implants (n = 18) (5.0 x 5.5 mm and 5.0 x 7.0 mm) and conventional implants (n = 23) (4.0 x10 mm and 4.0 x 11.5 mm). The implants were evaluated by RFA, by measuring the bone height, and peri-implant bone density. The implants were evaluated at the periods T0 (immediately after installation of the prosthesis), T1 (after 90 days), and T2 (after 180 days). Result: There were no statistically significant differences between groups with respect to radiographic bone density (152.50 ± 15.39 vs. 157.60 ± 28.46, for conventional and short implants, respectively at T2), stability of the implants (Conventional implants: 66.76 ± 10.39 at T0, and 61.85 ± 8.38 at T2 vs. Short implants: 57.50 ± 12.17 at T0, and 61.53 ± ...

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“…In a clinical study performed by Appleton et al, 10 progressively loaded implants demonstrated less marginal bone height loss Background: The aim of this work was to evaluate the changes that occur in the supporting structures of implants placed bilaterally in the posterior mandibular region as a result of 2 different immediate loading protocols: the immediate functional loading protocol and the immediate progressive loading protocol.…”

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confidence: 99%

The Effect of Two Different Immediate Loading Protocols in Implant-Supported Screw-Retained Prostheses

Khorshid¹,

Hamed²,

Aziz³

2011

Implant Dentistry

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A radiographic assessment of progressive loading on bone around single osseointegrated implants in the posterior maxilla

Cited by 48 publications

References 15 publications

Digital subtraction radiography evaluation of longitudinal bone density changes around immediate loading implants: a pilot study

Digital subtraction radiography evaluation of longitudinal bone density changes around immediate loading implants: a pilot study

Clinical comparison of short and conventional implants placed in the posterior region of the mandible. A pilot study

The Effect of Two Different Immediate Loading Protocols in Implant-Supported Screw-Retained Prostheses

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