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Influence of autoclavation on the efficacy of extracted tooth roots used for vertical alveolar ridge augmentation
Author(s) -
Schwarz Frank,
Mihatovic Ilja,
PopalJensen Ingela,
Parvini Puria,
Sader Robert
Publication year - 2019
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/jcpe.13090
Subject(s) - osseointegration , beagle , dental alveolus , resorption , alveolar ridge , dentistry , medicine , bone resorption , implant , surgery
Objectives To assess the influence of autoclavation on the efficacy of extracted tooth roots ( TR ) used for vertical alveolar ridge augmentation and two‐stage osseointegration. Material and Methods Maxillary premolars were randomly assigned to either autoclavation ( TR ‐A) or were left untreated ( TR ‐C) and used as block grafts for vertical alveolar ridge augmentation in both lower quadrants ( n = 4 beagle dogs). At 12 weeks, titanium implants were inserted and left to heal for 3 weeks. Histological analyses considered vertical bone gain ( BD ‐ BC ), augmented area ( AA ) and bone‐to‐implant contact ( BIC ) at vestibular (v) and oral (o) aspects. Results Both TR ‐C and TR ‐A (exposures n = 3) grafts were associated with a replacement resorption and marked vertical bone gain. Median BD ‐ BC ( TR ‐C: 1.45 [v] to 1.62 mm [o] versus TR ‐A: 0.97 [v] to 1.79 mm [o]) and AA ( TR ‐C: 0.64 [v] to 2.36 mm 2 [o] versus TR ‐A: 0.22 [v] to 2.36 mm 2 [o]) values were comparable in both groups. V BIC ( TR ‐C: 49.32 [v] to 52.97% [o] versus TR ‐A: 25.34 [v] to 46.11% [o]) values were significantly higher in the TR ‐C group. Conclusions Both TR ‐C and TR ‐A grafts equally supported vertical alveolar ridge augmentation; however, osseointegration was partially facilitated in the TR ‐C group.