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Radiograph of the lower right first molar filled with gutta-percha points and sealer using a lateral condensation technique.
Source publication
This clinical case describes a treatment approach that combines, in a single appointment, a crown lengthening procedure and the final crown preparation for the restoration of a severely decayed tooth. This approach allows for a more accurate placement of the crown margin in relation to the bone crest while reducing treatment time.
Context in source publication
Context 1
... removing the polyp, a conventional ac- cess cavity was prepared in the occlusal surface of the first molar with a 330-carbide bur and widened with an Endo-Z bur (Dentsply Maillefer, Tulsa, OK, USA) to enhance visibility of the root canal system. Irrigation of the canal was done several times with 5% sodium hypochlorite, and the last irrigation solution was left in the canal to dissolve organic material. Determination of the working length was done using an electronic apex locator (Root ZX®, J Morita Corporation, Kyoto, Japan) and the radio- graph. Canal enlargement was performed using a hand file, and the root canals were filled with gutta-percha points (Diadent, Seoul, Korea) and sealer (AH26, Dentsply, Konstanz, Germany) us- ing a lateral condensation technique (Figure 3). A post (ParaPost, Coltène/Whaledent Inc., Cuyahoga Falls, OH, USA) was inserted in the mesio-buccal ...
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Purpose:
To evaluate the effect of the triad finish line design, axial wall convergence angle, and luting cement on the marginal fit of metal copings used in metal-ceramic crowns.
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75 flat dentin surfaces were randomly distributed among 5 groups, according to cements used; Group 1: RelyxU100 (3M/ESPE), Group 2: Bis Cem (Bisco), Group 3: Max Cem (Kerr), Group 4: SeT PP (SDI) and Group 5: Relyx ARC (3M/ESPE), control. Ceramic test cylinders (IPS Empress 2 / Ivoclar-Vivadent) 4.1 mm across were prepared a...
SUMMARY The dimensional accuracy of optical bite registration in the CEREC system was compared to that of the conventional physical method in vitro using a bite registration material. Maxillary and mandibular full-arch dentate epoxy models mounted on an articulator were used to measure the interarch distance and the angles created by the occlusal p...
The Hall Technique (HT) is a method for managing carious primary molars. Decay is sealed under pre-formed metal crowns without any caries removal, tooth preparation, or local anesthesia. The aim of this study was to compare HT clinical/radiographic failure rates with General Dental Practitioners' (GDPs) standard (control) restorations. We conducted...
Citations
... A technique of surgical crown lengthening followed by tooth preparation has been suggested as a method for a more accurate placement of the restoration margin in relation to the alveolar crest. (9) This technique also offers the additional advantage of reducing the treatment time. . Even though orthodontic extrusion of the fracture fragment is a good treatment option but it could impair good aesthetic resolution because the cervical diameter of the extruded teeth is smaller than that of the adjacent teeth, time required to achieve the final result is longer and tipping of the adjacent teeth if the main archwire is deflected is seen [10] During the second half of 1960s, Root Submerged Technique (RST) was introduced in which crown of the tooth was resected and the submerging the root of the tooth by covered with a buccal or buccolingual flap, so that bone resorption can be prevented.In most cases, dental pulps were vitally preserved or root canal treatments were performed before or during the procedure (11).This method entails grinding the failing tooth 2 mm below the free gingival margin to make it level with thealveolar crest and then leaving it in the socket for 3-4 weeks so that surrounding tissue can proliferate over the remaining root11. ...
... A technique of surgical crown lengthening followed by tooth preparation has been suggested as a method for a more accurate placement of the restoration margin in relation to the alveolar crest. (9) This technique also offers the additional advantage of reducing the treatment time. . Even though orthodontic extrusion of the fracture fragment is a good treatment option but it could impair good aesthetic resolution because the cervical diameter of the extruded teeth is smaller than that of the adjacent teeth, time required to achieve the final result is longer and tipping of the adjacent teeth if the main archwire is deflected is seen [10] During the second half of 1960s, Root Submerged Technique (RST) was introduced in which crown of the tooth was resected and the submerging the root of the tooth by covered with a buccal or buccolingual flap, so that bone resorption can be prevented.In most cases, dental pulps were vitally preserved or root canal treatments were performed before or during the procedure (11).This method entails grinding the failing tooth 2 mm below the free gingival margin to make it level with thealveolar crest and then leaving it in the socket for 3-4 weeks so that surrounding tissue can proliferate over the remaining root11. ...
Management of complicated crown root fractures, at the aesthetic zone is one of the greatest challenges for restorative dentists. This case report demonstrates an interdisciplinary approach which combines endodontic treatment, periodontal crown lengthening and prosthodontic post-core-crown restoration procedures to restore a complicated crown root fracture of the maxillary centrals and the right lateral incisor to achieve a satisfactory cosmetic result.
... Healthy gingival tissue samples were obtained from healthy patient during crown lengthening procedures. Crown lengthening procedures are performed to provide adequate room for crown preparation and reestablishment of the biologic width between the crown margin and the bone crest 11) . This study was reviewed and approved by the Institutional Review Board of Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea (KC11SISI0348), and informed consents were obtained from the patients. ...
Objectives: Asiasari radix (A. radix) is a traditional herb medicine that has been used as an analgesic, antitussive, or anti-allergic remedy. This study was performed to evaluate the effects of low concentration of the Asiasarum heterotropoides extract on the morphology and proliferation of the human mesenchymal stem cells derived from periodontal tissue.
Methods: Stem cells derived from gingiva were grown in the presence of A. radix at final concentrations that ranged from 0.001 to 0.01 μg/mL. The morphology of the cells was viewed under an inverted microscope and the analysis of cell proliferation was performed by using Cell Counting Kit-8 (CCK-8) on days 1 and 3.
Results: The control group showed fibroblast morphology. The shapes of the cells in 0.001 and 0.01 μg/mL of A. radix were similar to that of the untreated control group. The cultures growing in the presence of A. radix at day 1 showed an increase in the CCK-8 value. The relative values of CCK-8 assays of 0.001 and 0.01 μg/mL of A. radix are 130.6 % ± 1.8 % and 129.3 % ± 1.5 %, respectively, when the CCK-8 result of the untreated control group at day 1 is considered 100% (P = 0.051).
Conclusions: Within the limits of this study, low concentrations of A. radix seemed to increase the proliferation of the stem cells that were derived from the gingiva and did not have adverse effects on the morphology of the cells.
... 20 A technique of crown lengthening with simultaneous tooth preparation has been suggested as a method for a more accurate placement of the restoration margin in relation to the alveolar crest. 4 This technique also offers the additional advantage of reducing the treatment time. In the case presented here, because of the complicated nature of the tooth fractures, which necessitated surgical exposure to facilitate endodontic treatment, crown lengthening was also performed as an initial procedure without any preliminary tooth preparation or placement of temporary restorations. ...
When a tooth fracture occurs, the fracture line can extend in a variety of directions, and the direction of the fracture line often dictates the treatment plan. In cases where fracture lines extend apical to the gingival margin, exposure of fractured margins becomes necessary. And management of such tooth fractures often requires an interdisciplinary approach involving endodontic, periodontic and restorative procedures. This article describes a case in which severely traumatized maxillary anterior teeth were managed by a combined approach involving surgical exposure and crown lengthening, endodontic and restorative procedures.
This study clinically evaluated the relationship of gingival recessions with the occlusal disorders. The evaluations were performed by using questionnaires and clinical examinations. 558 teeth were examined, with 24.1%, 135 had gingival recession greater than or equal to 1mm. Using “t” Studant test (p ≤ 0,05%) to evaluate the average of the recession and its relationship with the variables studied, we observed statistically significant association with recession to occlusal disorders (p = 0,002). Although this results, occlusal disorders haven’t been associated to degree of recession in millimeters (p = 0,620). We can conclude that however occlusal disorders aren’t associated to degree of recession, it’s related to its occurrence.
Few topical formulations have been designed specifically to treat oral mucosal diseases. Local drug delivery may provide a more targeted and efficient option than systemic delivery for diseases of the oral mucosa. The permeability to the topical drugs differs according to the thickness of the epithelium and the extent of keratinization. The loss of the permeability barrier in the oral mucosa, due to ulceration or erosion, leads to rapid diffusion of the drug into tissues as compared to the intact areas of the mucosa. Oral mucosal delivery has the potential to treat many different conditions and diseases, such as oral cancer, mucositis, lichen planus, herpes simplex, candidiasis, recurrent aphthous stomatitis, vesiculo-bullous diseases, neuropathic pain and salivary dysfunction. Each therapy requires distinct penetration and drug retention profiles in order to optimize treatment and minimize side effects. In this paper, topical medications are discussed, as these are advantageous for the treatment of oral mucosal lesions with fewer side effects.
