ABSTRACT
The biocompatibility of cementing materials is a prerequisite for any dental procedure. In this study, the tolerance of gingival tissue to an advanced fourth-generation dental adhesive (High-Q-Bond) was tested in dogs. The results from High-Q-Bond adhesive were compared with those obtained from Superbond C&B adhesive. Buccal class V subgingival cavities were restored with either High-Q-Bond or Superbond C&B adhesive Untreated teeth served as normal intact controls. The teeth with the attached buccal gingivae were extracted and processed for histologic examination. The histologic observations showed an inflammatory response in the gingiva of the Superbond C&B adhesive-treated teeth, whereas the High-Q-Bond fillings exhibited no noticeable adverse effect on the gingival tissue.
Subject(s)
Dentin-Bonding Agents/toxicity , Gingiva/drug effects , Methacrylates/toxicity , Resin Cements/toxicity , Animals , Boron Compounds , Dental Restoration, Permanent/adverse effects , Dentin-Bonding Agents/chemistry , Dogs , Materials Testing , Methacrylates/chemistry , Methylmethacrylates , Resin Cements/chemistry , Tensile StrengthABSTRACT
We present four individuals with Gerodermia Osteodysplastica in a Jewish family from Morocco confirming the autosomal recessive inheritance of the disorder. Three previously unreported findings are described: a) enlarged funnel-shaped mandibular lingula; b) extension of the mandibular premolar and molar roots below the inferior dental canal, and of the second molars into the lower border of mandibular cortical bone; and c) hypercementosis of the maxillary incisors and mandibular molars surrounded by a radiolucent halo in several teeth. The facial deformity resulting from maxillary hypoplasia and mandibular prognathism was corrected by orthognathic surgery: Le Fort I maxillary osteotomy and vertical mandibular osteotomy.
Subject(s)
Jaw Abnormalities/genetics , Jaw Abnormalities/surgery , Osteoporosis/genetics , Skin Abnormalities , Adult , Cephalometry , Cutis Laxa/genetics , Dental Cementum/abnormalities , Female , Genes, Recessive , Humans , Joint Instability/genetics , Male , Malocclusion, Angle Class III/surgery , Prognathism/surgery , Syndrome , Tooth Abnormalities/geneticsABSTRACT
Subgingivally fractured incisors are still a challenge to treat. A case report is used as a basis for reviewing the different treatment options, which involve either extraction or preservation of the root. A multidisciplinary approach, using orthodontic forced eruption, is presented in detail.
