Browsing by Author "Shaba, P.O."

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    Prevalence of Additional Canals in Maxillary First Molars in a Nigerian Population
    (2006) Abiodun-Solanke, I.F; Dosumu O.O.; Shaba, P.O.; Ajayi,D.M
    Aim: The aim of this study was to investigate the prevalence of additional canals in maxillary first molars in a selected population in Nigeria. Methods and Materials: One hundred extracted teeth were collected from the Pedodontic and Oral Surgery clinics of the University College Hospital in Ibadan, Nigeria. The teeth were identified and their root planed to remove adherent soft tissues. Each tooth was sectioned at the cementoenamel junction (CEJ) and then again at 2 mm below the CEJ. The number of canals present in each root was noted. For the clinical aspect of the study, 30 patients with clinical and radiological evidence of pulpal involvement participated in the study. These patients had root canal therapy performed on their maxillary first molars and the number of canals was confirmed with periapical radiographs. Results: In the laboratory phase of the study 77% of the teeth sectioned had three canals while 22% had four canals with the fourth canal being a second mesiobuccal canal. Only one tooth had five canals with two canals in the palatal root, two canals in the mesiobuccal root, and the remaining canal in the distobuccal root. For the clinical phase of the study, 29 (96.7%) out of 30 patients treated had three canals while only one (3.3%) had four canals with the fourth canal being a second mesiobuccal canal. Conclusion: Clinicians should assume there are additional canals in each root when performing endodontic therapy on the maxillary first molar. Only after a thorough search for extra canals and after it is determined
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    Randomized clinical study comparing metallic and glass fiber post in restoration of endodontically treated teeth
    (2014) Gbadebo, O.S.; Ajayi,D.M.; Dosumu,O.O.; Shaba, P.O.
    Background: Post-retained crowns are indicated for endodontically treated teeth (ETT) with severely damaged coronal tissue. Metallic custom and prefabricated posts have been used over the years, however, due to unacceptable color, extreme rigidity and corrosion, fiber posts, which are flexible, aesthetically pleasing and have modulus of elasticity comparable with dentin were introduced. Aim: To compare clinical performance of metallic and glass fiber posts in restoration of ETT. Materials and Methods: 40 ETT requiring post retained restorations were included. These teeth were randomly allocated into 2 groups. Twenty teeth were restored using a glass fiber-reinforced post (FRP) and 20 others received stainless steel parapost (PP), each in combination with composite core buildups. Patients were observed at 1 and 6 months after post placement and cementation of porcelain fused to metal (PFM) crown. Marginal gap consideration, post retention, post fracture, root fracture, crown fracture, crown documentation and loss of restoration were part of the data recorded. All teeth were assessed clinically and radio-graphically. Fisher’s exact test was used for categorical values while log-rank test was used for descriptive statistical analysis. Results: One tooth in the PP group failed, secondary to documentation of the PFM crown giving a 2.5% overall failure while none in the FRP group failed. The survival rate of FRP was thus 100% while it was 97.5% in the PP group. This however was not statistically significant (log-rank test, P = 0.32). Conclusion: Glass FRPs performed better than the metallic post based on short-term clinical performance.