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Quirynen, Marc; Lahoud, Pierre; Teughels, Wim; Cortellini, Simone; Dhondt, Rutger; Jacobs, Reinhilde; Temmerman, Andy
Journal of clinical periodontology, April 2023, Letnik: 50, Številka: 4Journal Article
Aim Alveolar ridge resorption following tooth extraction often renders a lateral bone augmentation inevitable. Some patients, however, suffer from severe early (during graft healing, Eres) and/or late (during follow‐up, Lres) graft resorption. We explored the hypothesis that the “individual phenotypic dimensions” may partially explain the degree of such resorptions. Materials and Methods Patients who underwent a guided bone regeneration (GBR) procedure were screened for inclusion according to the following criteria: (1) a relatively symmetrical maxillary arch; (2) an intact contra‐lateral alveolar bone dimension; (3) the availability of a pre‐operative cone‐beam CT (CBCT); (4) a CBCT taken immediately after GBR, and (5) at least one CBCT scan ≥6 months after surgery. CBCT scans from different timepoints were registered and imported into the Mimics software (Materialise, Leuven, Belgium). Bone dimensions of the contra‐lateral site of the augmentation, representing the “individual phenotypical dimension (IPD) of the alveolar crest”, were superimposed on the augmented site and registered accordingly. As such, Eres and Lres could be measured over time, in relation to the IPD (in two dimensions; per millimetre apically from the alveolar crest, in the centre of the GBR), as well as in three dimensions (the entire GBR, 2 mm away from the mesial, distal, and apical border for standardization). Results A total of 17 patients (23 augmented sites) were included. After Eres, the outline of the augmentation was in general located ±1 mm outside the IPD, but ≥1.5 years after GBR, it further moved towards the IPD (85% within 0.5 mm distance). Conclusions Within the limitations of this study, the results indicate that the dimensions of a lateral bone augmentation are defined by the “individual phenotypic bone boundaries” of the patient.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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