Clinical and histologic evaluation of heterotopic mucosa transpositioning at teeth and dental implants.
connective tissue
dental implants
gingiva
keratinized tissue
peri-implant mucosa
soft tissue healing
teeth
tissue characteristics
Journal
Clinical oral implants research
ISSN: 1600-0501
Titre abrégé: Clin Oral Implants Res
Pays: Denmark
ID NLM: 9105713
Informations de publication
Date de publication:
Dec 2023
Dec 2023
Historique:
revised:
11
09
2023
received:
13
02
2023
accepted:
14
09
2023
pubmed:
1
10
2023
medline:
1
10
2023
entrez:
30
9
2023
Statut:
ppublish
Résumé
To investigate the healing after heterotopic mucosa transpositioning at dental implants and teeth. One hemimandible per dog (n = 4) was allocated to receive 3 implants (test), whereby 3 premolars on the contralateral side served as controls. After osseointegration, a Z-plasty was performed on the buccal aspect of the test and control sites to heterotopically move the zone of keratinized tissue (KT) into a region with non-keratinized tissue (nKT) and vice versa. Clinical measurements were performed before (T0) and at 12 weeks following heterotopic transposition (T1). Thereafter, specimens were processed for histological analysis. Clinical measurements revealed that at T1, a band of KT was reestablished at teeth (mean: 2.944 ± 1.866 mm), whereas at implants, the transpositioned nKT resulted in a mucosa without any signs of keratinization (mean: 0 mm; p < .0001). At implant sites, the probing attachment level loss was more pronounced compared to tooth sites (-1.667 ± 1.195 mm and -1.028 ± 0.878 mm, respectively; p = .0076). Histologically, the transpositioned nKT, was accompanied by the formation of KT at the tooth but not at implant sites. The supracrestal soft tissues were statistically significantly higher at tooth compared to implant sites (2.978 ± 0.483 mm and 2.497 ± 0.455 mm, p = .0083). The transpositioned KT remained mostly unaltered in its morphological characteristics. The findings of this study indicate that: (a) transpositioned KT may retain its morphological characteristics; and (b) transpositioned nKM was accompanied by the formation of KT at the tooth but not at implant sites.
Types de publication
Journal Article
Langues
eng
Pagination
1395-1405Subventions
Organisme : International Team for Implantology
Informations de copyright
© 2023 The Authors. Clinical Oral Implants Research published by John Wiley & Sons Ltd.
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