Sub-gingival margin placement is sometimes required due to different
reasons and is often associated with adverse periodontal reactions. The
purpose of this study was to determine if a single restoration with subgingival
margin on a tooth, in the maxillary anterior zone, would affect its
periodontal soft tissue parameters, and whether or not a deep chamfer
preparation has a different influence in the periodontium when compared to a
feather edge preparation.
Plaque and gingival indexes, periodontal probing depth, bleeding on probing
and patient’s biotype were registered. 106 teeth were prepared with a deep
chamfer, while 94 were prepared with a feather edge finishing line. Six and
twelve month after the restorations delivery the same parameters were
evaluated. Repeated measure one-way analysis of variance (ANOVA )
(α=0.05) was used. At six months the patient
A statistically significant difference between baseline and the 6 and 12-month
follow up is present in regards to plaque index, gingival index and periodontal
probing depth, but no statistically significant difference between chamfer and
feather edge finishing lines. There is a statistically significant difference
between baseline and the 6 and 12-month follow up in regards to bleeding
on probing. Feather edge preparation presents significantly more bleeding on
probing and less gingival recession than the chamfer.
Sub-gingival margins do influence the periodontal soft tissue response.
Statistically significant difference exists between feather edge and chamfer
finishing lines in regards to bleeding on probing and gingival recession. Subgingival
margins should be carefully selected, especially when feather edge
finishing line is utilized.
| Identifer | oai:union.ndltd.org:TDX_UIC/oai:www.tdx.cat:10803/387222 |
| Date | 30 June 2016 |
| Creators | Paniz, Gianluca |
| Contributors | Nart Molina, José, Universitat Internacional de Catalunya. Departament d'Odontologia |
| Publisher | Universitat Internacional de Catalunya |
| Source Sets | Universitat Internacional de Catalunya |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis, info:eu-repo/semantics/publishedVersion |
| Format | 105 p., application/pdf |
| Source | TDX (Tesis Doctorals en Xarxa) |
| Rights | L'accés als continguts d'aquesta tesi queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: http://creativecommons.org/licenses/by-nc-nd/3.0/es/, info:eu-repo/semantics/openAccess |
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