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Postoperative Radiographs (postoperative + radiograph)

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Medical Sciences100%

Selected Abstracts

Pulp revascularization of replanted immature dog teeth after treatment with minocycline and doxycycline assessed by laser Doppler flowmetry, radiography, and histology

DENTAL TRAUMATOLOGY, Issue 2 2004
Alessandra Luisa de Souza Ritter
Abstract,,, This study investigated the effect of topical antibiotic treatment on pulp revascularization in replanted teeth. Thirty-four immature teeth were selected from three young dogs. Baseline radiographs and laser Doppler flowmetry (LDF) readings were obtained. Specimens were randomly divided into four groups: Thirty-eight teeth were extracted, kept dry for 5 min, and either (Group 1) covered with minocycline mixture (G1, n = 11), (Group 2) soaked in doxycycline (G2, n = 11), or (Group 3) soaked in saline (G3-negative control, n = 6), and replanted. Teeth in Group 4 were not extracted (positive control, n = 6). Postoperative radiographs and LDF readings were obtained for 2 months after replantation. After sacrifice, the jaws were collected and processed for light microscopy. Pre- and postreplantation LDF readings and radiographs, and histologic findings were analyzed to assess revascularization. Pulp revascularization occurred in 91% (G1), 73% (G2), and 33% (G3) of the specimens. In conclusion, minocycline facilitates pulp revascularization in replanted immature teeth after replantation. [source]

An audit of root canal treatment performed by undergraduate students

INTERNATIONAL ENDODONTIC JOURNAL, Issue 7 2001
S. J. Hayes
Abstract Aim The objective of this study was to audit the quality of root canal treatment performed by undergraduate students on adult patients. Methodology All root canal treatment completed by first and second clinical year undergraduates over a 12-month period were included in the study. The availability and readability of pretreatment, diagnostic length, try-in point and postoperative radiographs were noted for each case. All readable postoperative radiographs of primary treatments were examined for quality of the root filling, categorized as complete, incomplete apical, incomplete apical and lateral or not assessable. The distance from the radiographic apex of the root to the apical extent of each root filling was measured to 0.1 mm precision. Results Undergraduates performed primary treatment on 157 teeth. A postoperative radiograph was available in 97% of cases. A try-in point radiograph was unavailable in one-fifth of cases. Twenty-seven teeth (13%) were categorized as satisfactory in terms of both radiographic quality and distance of the root filling from the radiographic apex. Conclusions Overall, the technical quality of root canal treatment completed by undergraduate students was poor. [source]

Comparison of apical transportation between ProFileÔ and ProTaperÔ NiTi rotary instruments

INTERNATIONAL ENDODONTIC JOURNAL, Issue 6 2004
M. K. Iqbal
Abstract Aim, To use a newly developed radiographic technique to compare apical transportation and loss of working length (WL) between .06 taper ProFileÔ Series 29 and ProTaperÔ nickel,titanium (NiTi) rotary instruments in vitro. Methodology, Mesio-buccal canals of 40 extracted mandibular molars were randomly divided into two groups. Group 1 was instrumented with ProFileÔ and group 2 with ProTaperÔ instruments according to the manufacturers' directions. A specially constructed radiographic jig with a Schick digital radiographic system (Schick Technologies Inc., Long Island City, NY, USA) was used to take pre- and postoperative radiographs of the samples at predetermined angulations. Using AutoCAD 2000 (Autodesk Inc., San Rafael, CA, USA), the central axes of initial and final instruments were radiographically superimposed to determine the loss of WL and degree of transportation at D0, D1, D2 and D4 from the WL. Data were analysed using repeated-measures anova. Results, A statistically significant difference in apical transportation was found at the D4 level between the two groups (P = 0.05). There was no statistical significance regarding postinstrumentation change in WL between groups. Spearman's Bivariate Correlation analysis indicated no statistically significant relationship between the radius of curvature and transportation. Conclusion, The results indicate that both ProTaperÔ and ProFileÔ instruments are comparable to each other in regards to their ability to optimally enlarge root canal with minimal transportation and loss of WL in vitro. [source]

An audit of root canal treatment performed by undergraduate students

INTERNATIONAL ENDODONTIC JOURNAL, Issue 7 2001
S. J. Hayes
Abstract Aim The objective of this study was to audit the quality of root canal treatment performed by undergraduate students on adult patients. Methodology All root canal treatment completed by first and second clinical year undergraduates over a 12-month period were included in the study. The availability and readability of pretreatment, diagnostic length, try-in point and postoperative radiographs were noted for each case. All readable postoperative radiographs of primary treatments were examined for quality of the root filling, categorized as complete, incomplete apical, incomplete apical and lateral or not assessable. The distance from the radiographic apex of the root to the apical extent of each root filling was measured to 0.1 mm precision. Results Undergraduates performed primary treatment on 157 teeth. A postoperative radiograph was available in 97% of cases. A try-in point radiograph was unavailable in one-fifth of cases. Twenty-seven teeth (13%) were categorized as satisfactory in terms of both radiographic quality and distance of the root filling from the radiographic apex. Conclusions Overall, the technical quality of root canal treatment completed by undergraduate students was poor. [source]

Healing of dorsal pancarpal arthrodesis in the dog

JOURNAL OF SMALL ANIMAL PRACTICE, Issue 3 2003
U. Michal
The purpose of this study was to assess radiographically the healing process in dogs which had undergone dorsal pancarpal arthrodesis with autologous cancellous bone grafting. The medical records of 17 dogs that had undergone dorsal pancarpal arthrodesis with complication-free dynamic compression plate fixation were reviewed. Postoperative healing was evaluated radiographically. It started five weeks after surgery and progressed for six to 12 weeks in all dogs. After this time period no further progression of healing was observed. Between weeks 6 and 8, bony fusion progressed significantly more rapidly in the intercarpal joint than in the radiocarpal joint. The following criteria had no influence on healing time: gender, age, bodyweight, and immediate versus delayed surgery after trauma. The major difficulties noted with respect to the interpretation of postoperative radiographs were irregular bony bridging, mainly caused by inadequate palmar curettage, and oblique projection of articular surfaces resulting in superimposition of joint spaces and solid bone. [source]