Introduction: The management of the hospital observed that patients on appointment and those on the queue, at times show their discontentment with the long waiting time at the hospital. Sometimes, patients goes without treatment. Hence, present study is undertaken to find out the causes leading to increased patient waiting time. Material and Methods: The study has been conducted in order to systematically improve patient waiting time in dental hospital in Hyderabad city. Fishbone diagram has been used to study the cause and effects. Paired t –test is used to statistically analyze the obtained data. p value <0.05 is considered as significant value. Results: Data so obtained reported patients waiting time from entering the hospital to initiation of the treatment is obtained as 2.01± 1.02 hours. The causes for long waiting time attributed to patient and clinician factors, lack of pre-telephonic appointment system, lack of trained attendants and slow sterilization process. Conclusion: The present study concludes that dissatisfaction with waiting time in the clinic reveals an important problem that needs to be resolved, possibly through a proper channel of appointment system. Keywords: Patient satisfaction; Waiting time