Errors in radiographic assessment of marginal bone height around osseointegrated implants

Sewerin, I

doi:10.1111/j.1600-0722.1990.tb00994.x

“…In the anterior mandible (especially in edentulous patients), many authors mentioned that the atrophy related elevation of the floor of the mouth, the pain and discomfort to the patient, all yield to difficulties in establishing good radiographs. Superimposition of the calcified structures of the jaw itself may also interfere with the measurement of the crestal bone level [34][35][36].…”

Section: Limitations Of the Radiological Methodsmentioning

confidence: 99%

“…However, any deviation from the correct vertical angle leads to errors in the assessments of the marginal bone height. According to the longitudinal study of Sewerin [34] on peri-implant bone loss, the distance between a reference point and the marginal bone level around implants could be assessed with a great accuracy by means of the long-cone paralleling technique, conventional or digitalised. The author measured, by evaluating bone height around both threaded and cylindrical implants on intra-oral radiographs, a mean inter-examiner difference of 0.09 ± 0.16 mm.…”

Section: Limitations Of the Radiological Methodsmentioning

confidence: 99%

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X-ray evaluation at 5–6 years of Straumann implants (part 2)

Gheddaf-Dam

¹

,

Najm²,

Lysitsa

³

et al. 2010

Med Buccale Chir Buccale

0

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-The loss of bone around implants is, on an average, below 1 mm during the first year and 0.2 mm per year in the years that follow. It essentially depends upon biomechanical factors but the level at which the bone stabilizes is determines by the implant depth. Intraoral radiographs (paralleling technique) are considered as the "firs choice2 for the evaluation of the radiolucency with respect to the proximal peri-implant bone. This study was based on 528 implants placesd in private practice, with an objective to determine their success rate and their survival at 5-6 years, to evaluate the peri-implant proximal bone loss and outline the factors that could influence this bone loss. The results obtained from 411 accessible patient files are in accordance with the literature date (at 5-6 years, the survival rate is 99.2%, the success rate is 93%, the average bone los sis 1.16 mm). The bone loss was more severe in smokers and in implants with a TPS surface, those placed in the anterior regions or those with vestibular cortical bone below the 1 mm. Short implants were not associated with a more severe bone loss than longer implants.

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“…When an observer could not confidently identify the implant collar and the most apical bone-to-implant contact, radiographic measurements were not included. Bitewing radiographs were also considered for bone level evaluation, since bone level changes in the follow-up period always began around the neck of the implant [34].…”

Section: Criteria For Determining Interpretable Radiographsmentioning

confidence: 99%

X-ray evaluation at 5-6 years of Straumann implants (part 1)

Gheddaf-Dam

¹

,

Najm²,

Lysitsa

³

et al. 2010

Med Buccale Chir Buccale

View full text Add to dashboard Cite

-The loss of bone around implants is, on an average, below 1 mm during the first year and 0.2 mm per year in the years that follow. It essentially depends upon biomechanical factors but the level at which the bone stabilizes is determines by the implant depth. Intraoral radiographs (paralleling technique) are considered as the "firs choice2 for the evaluation of the radiolucency with respect to the proximal peri-implant bone. This study was based on 528 implants placesd in private practice, with an objective to determine their success rate and their survival at 5-6 years, to evaluate the peri-implant proximal bone loss and outline the factors that could influence this bone loss. The results obtained from 411 accessible patient files are in accordance with the literature date (at 5-6 years, the survival rate is 99.2%, the success rate is 93%, the average bone los sis 1.16 mm). The bone loss was more severe in smokers and in implants with a TPS surface, those placed in the anterior regions or those with vestibular cortical bone below the 1 mm. Short implants were not associated with a more severe bone loss than longer implants.

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“…These latter conditions have a significant impact on the MGL and MBL results for the marginal bone height around dental implants. 1 MGL is usually assessed by clinical measurements of the actual site, 2 but also could be assessed by taking a photograph (color slide) on which similar and additional measurements can be performed. When using photography for the purpose of assessing time-related changes in MGL, it is important to take the color slides in a standardized way.…”

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confidence: 99%

A Technique for Standardized Evaluation of Soft and Hard Peri‐Implant Tissues in Partially Edentulous Patients

Meijndert

¹

,

Meijer

²

,

Raghoebar

³

et al. 2004

Journal of Periodontology

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Background: There is a growing need to evaluate the esthetics of implant‐supported crowns and bridges. An important tool for such an evaluation is standardized assessment of the soft and hard peri‐implant tissue levels.Methods: A simple acrylic device has been developed for reliable and reproducible assessment of soft and hard periimplant tissues using standardized color slides and standardized dental x‐rays. With this device, changes in both the soft and hard tissues around implant‐supported crowns can be evaluated as a function of time. The reproducibility of the technique was tested on color slides as well as on dental x‐rays in a series of implant‐supported crowns and their neighboring teeth. Results: The reproducibility of this technique was excellent. The measuring errors for repeated measurements of the soft and hard tissues were 0.14 ± 0.02 mm and 0.13 ± 0.01 mm, respectively.Conclusions: The device is a reliable tool to assess changes in both soft and hard tissues around crowns and implants over time. Likewise, it is suggested that this technique also can be used to objectively assess soft and hard tissue changes around natural teeth with or without prosthetic restorations. J Periodontol 2004;75:646‐651.

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Errors in radiographic assessment of marginal bone height around osseointegrated implants

Cited by 64 publications

References 4 publications

X-ray evaluation at 5–6 years of Straumann implants (part 2)

X-ray evaluation at 5–6 years of Straumann implants (part 2)

X-ray evaluation at 5-6 years of Straumann implants (part 1)

A Technique for Standardized Evaluation of Soft and Hard Peri‐Implant Tissues in Partially Edentulous Patients

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