000160938 001__ 160938
000160938 005__ 20251017144632.0
000160938 0247_ $$2doi$$a10.1007/s00784-025-06364-8
000160938 0248_ $$2sideral$$a144078
000160938 037__ $$aART-2025-144078
000160938 041__ $$aeng
000160938 100__ $$aQuintas-Hijós, Jacobo$$uUniversidad de Zaragoza
000160938 245__ $$aInfluence of intermediate abutment height and timing of placement on marginal bone loss in single implant-supported crowns: a 12-month follow-up randomized clinical trial
000160938 260__ $$c2025
000160938 5060_ $$aAccess copy available to the general public$$fUnrestricted
000160938 5203_ $$aObjectives: To determine the most effective combination of abutment height and timing of placement in reducing marginal bone loss (MBL). Materials and methods: 54 patients received at least one single screw-retained crown on an implant replacing a posterior tooth (60 implants). Implants were divided into six groups based on intermediate abutment height (1.5 mm, 2 mm, 3 mm) and timing of placement (immediate: surgery 1; delayed: surgery 2): Group A3I (height 3, surgery 1), Group A2I (height 2, surgery 1), Group A15I (height 1.5, surgery 1), Group A3D (height 3, surgery 2), Group A2D (height 2, surgery 2), Group A15D (height 1.5, surgery 2). Mesial and distal linear radiographic measurements were taken at five follow-up points: implant surgery, crown placement (T1), and 3 (T2), 6 (T3), and 12 months after loading (T4). Partial and total MBL were compared between groups. Results: After 12 months, the lowest MBL was found in groups A3I (0.13 ± 0.11 mm) and A2I (0.24 ± 0.11 mm), with no statistical difference between them. Groups A15I (0.70 ± 0.12 mm), A3D (0.66 ± 0.11 mm), A2D (0.62 ± 0.12 mm), and A15D (0.78 ± 0.11 mm) showed significantly higher MBL than groups 1 and 2, with no statistical difference among them. Conclusions: Immediate abutments of 2–3 mm resulted in lower MBL compared to 1.5 mm immediate abutments or any delayed abutments.
000160938 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000160938 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000160938 700__ $$aPérez-Pevida, Esteban
000160938 7102_ $$11013$$2275$$aUniversidad de Zaragoza$$bDpto. Cirugía$$cÁrea Estomatología
000160938 773__ $$g29 (2025), 291 [13 pp.]$$tClinical Oral Investigations$$x1436-3771
000160938 8564_ $$s1763471$$uhttps://zaguan.unizar.es/record/160938/files/texto_completo.pdf$$yVersión publicada
000160938 8564_ $$s2011606$$uhttps://zaguan.unizar.es/record/160938/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000160938 909CO $$ooai:zaguan.unizar.es:160938$$particulos$$pdriver
000160938 951__ $$a2025-10-17-14:26:47
000160938 980__ $$aARTICLE