Background: Tapered implants imitate the natural form of the root. They are known to enhance primary stability by providing pressure on the cortical bone of regions with poor bone qualities and also has a good survival rate as it directs stresses away from the crestal cortical bone while transferring it to the cancellous bone. Purpose: Maxillary anatomic constraints sometimes make it necessary to surgically position implants at angles that are not optimal for prosthetic restorations or by positioning the implant in the area with the greatest available bone, with the intention of correcting the implant alignment at the time of prosthetic restoration. This is made possible, in carefully planned cases with the use of angulated abutments. Materials and Methods: Three tapered implants with triangular, square, and buttress thread designs having a 15° and 25° angulated abutment were created. The implant models were positioned in anterior maxillary bone D2 and D3 and clinical loading conditions simulated. The maximum equivalent von Mises stress values were recorded and analyzed using ANSYS software. Results: The finite element analysis carried out showed less stresses from tapered implant square thread design in D2 and D3 bone with 15° angulated abutment, while buttress thread design performed better in D2 and D3 bone with 25° abutment angulation on axial and nonaxial loading. Conclusion: Bone type is an important factor that affects stress distribution. More stress occurred in D3 bone compared to D2 bone type. Thus, bone type should be carefully considered when choosing the most appropriate implant design.

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Aim:  To analyse the detection rate of oral cancer from referrals to our department and if our department policy of triaging referrals was appropriate. Material and methods:  The authors reviewed all oral cancer referrals and urgent oral lesion referrals to the Department of Oral and Maxillofacial Surgery at Peterborough and Stamford National Health Service Foundation Trust Hospitals during 2006. Results:  Sixty‐three patients were referred in 2006 for lesions that consultant triage suspected may be malignant or referred to be seen urgently. Thirty‐three patients were referred by general practitioners and all were subsequently seen within the 2‐week rule. Consultant triage of referral letters allocated a further 17 to been seen under the 2‐week rule timescale. An additional 13 urgent referrals were classified as not meeting the 2‐week rule criteria by the consultant that graded the letter but to be seen within 4 weeks. Conclusion:  Our study shows that with consultant triaging of referral letters, a malignancy detection rate of 24% can be achieved.

In this study, total of 60 extracted human teeth were divided into four groups. Group I and II were subjected to LCU A (2550 mW/cm2) and Group III and IV to LCU B (700 mW/cm2), respectively. The increase in temperature level from baseline was recorded using K type thermocouple while curing of dentin bonding agent and composite resins. The temperature rise was significantly higher for Light Curing Unit A which had higher intensity light than Light Curing Unit B. Remaining dentin thickness of the prepared tooth also has significant role in the temperature rise. Hence, light curing units should be used with caution to avoid over‐exposure of teeth. Dental practitioners need to prepare teeth with silicone indices and pre‐assessment of radiographs to avoid over‐preparation. Regular check of intensity of light curing unit using commercially available intensity meter is advocated.

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