June 2021 Periodontics

A 32-year-old man received anterior ceramic crowns in the maxillary arch, then started to notice recession of the gum and longer appearance of the crowns. Clinical examination confirms the presence of gingival recessions. Which of the following is the most probable etiology of the gingival recession that occurred?

A 35-year-old man presented to the clinic complaining of bleeding when brushing a lower right tooth. Clinical examination revealed over contoured crown at the buccal of tooth #46, class I furcation involvement, probing depth range from 2-3 mm, and localized bleeding on probing at the buccal of tooth #46. Which of the following is the most likely treatment of choice?

Which of the following is measured from the gingival margin to the base of the periodontal pocket, during periodontal examination?

A 45-year-old patient was referred to the clinic following the extraction of a non-restorable tooth #36. Bone graft was packed and the membrane was sutured in the area to preserve the alveolar bone width. Which of the following treatment modalities describes the procedures done in the patient?

A periodontist is performing a radiographic examination for a patient. He is looking at an axial view for a cone-beam radiograph of the mandibular second molar. The pocket is surrounded by three walls of bone. Which of the following types of bony defects is seen distal to the tooth?

Which of the following is the absolute diagnostic criterion for lack of osseointegration of an implant?

A 55-year-old woman with type Il diabetes presented to the clinic complaining of bleeding gums. Clinical examination revealed generalized probing depth of 7-9 mm, generalized bleeding on probing, horizontal bone loss 50%, and HbA1c 8.5%. Which of the following is the most likely treatment of choice?

A 55-year-old woman presented to the clinic complaining of pain after a scaling and root planing visit done two days ago. Clinical examination showed generalized ulcers on the gingival margin and bleeding on probing. The patient has excellent oral hygiene. Which of the following is the most likely treatment of choice?

As per Horning and Cohen’s staging of oral necrotizing diseases, which stage is characterized by necrosis extending into the labial and/or buccal mucosa?

Which of the following is measured by a periodontal probe?

In what year was the first electric toothbrush invented?

Which of the following anatomical periodontal structures contributes the most to tooth mobility on intact periodontium?

As per Grace and Smales tooth mobility index, which of the following is the classification if you test a tooth for mobility and it is positive for a range of about 1.5mm in a buccolingual direction?

A 45-year-old man is seeking periodontal treatment. Upon examination, the dentist noticed mobility of the mandibular teeth, a periapical radiograph was taken -see image- Which of the following best describes the bone level from the radiograph?

A non-resorbable GTR membrane barrier must be removed after:

Which stage of gingival inflammation is characterized by the irreversible destruction of tooth-supporting structures?

To treat the patient’s periodontitis, the periodontist decided to place PerioChip subgingivally as a local delivery agent. Which of the following is the active ingredient of PerioChip?

A 35-year-old woman attended her first maintenance visit three months after completing active periodontal therapy. She presented with generalized bleeding on probing and localized 5mm pockets. Which of the following should the dentist do aside from reinforcing oral hygiene measures?

A 45-year-old man is seeking periodontal treatment. Upon examination, the dentist noticed mobility of the mandibular teeth, a periapical radiograph was taken -see image- Which of the following best describes the bone level from the radiograph?

A 35-year-old woman went to the clinic to have his missing tooth #11 replaced with dental implants. Her medical history revealed no significant findings. Clinically, she has good oral hygiene and her periodontal health is acceptable — minimal plaque deposits, minimal bleeding on probing, and probing depths within normal limits. However, she revealed that she has been smoking for 10 years, with at least a pack per day for the last 5 years. Which of the following should be considered prior to the placement of dental implants?

Which stage of gingivitis is characterized by the predominance of neutrophils in the inflammatory site?

The most common bacteria found in the dental water line is:

Which of the following periodontal pathogens is suppressed after systemic metronidazole and amoxicillin, in combination with scaling and root planing?

A true periodontal pocket measures at least how many millimeters?

At what stage of necrotizing ulcerative gingival disease will necrosis limited to the tip of the interdental papilla be present?

A 43-year-old woman walks into the clinic complaining of inflamed gums and bleeding when brushing and flossing. The distal surface of tooth #25 has a probing depth of 6mm. A bitewing radiograph was taken showing vertical bone loss. Which of the following local factors is mostly responsible for the vertical bone loss on tooth #25?

Which of the following stages of gingival inflammation develops about one week after the beginning of dental plaque accumulation?

An 18-year-old man has been complaining of pain in his mouth for two days. Medically, he has a fever, accompanied by lymphadenopathy and malaise. He is also noticing a foul odor in his mouth. Radiographs taken show normal bone levels. A diagnosis of Acute necrotizing ulcerative gingivitis was made. What is the first clinical step in managing this patient’s condition?

What is the maximum acceptable level of bacteria in dental unit water?

A 45-year-old healthy woman presented to the clinic complaining of bleeding on brushing. Clinical examination revealed generalized probing depths that ranged from 5-7mm, generalized bleeding on probing, horizontal 40% bone loss, thin tissue phenotype. Which of the following is the most likely treatment of choice?

How many PerioChips can be inserted in a single appointment?

A 30-year-old woman is complaining of pain and bleeding associated with her maxillary lateral incisor. Her medical history is insignificant. Clinically, her probing depths ranged from 1-3 mm, except for the palatal of tooth #12, which has a probing depth of 10mm. What is the most likely cause of the deep pocketing?

A dentist is performing periodontal charting. He is trying to calculate the clinical attachment loss in the distobuccal site for tooth #11. In the concerned area, the gingival margin is 2 mm coronal to the cementoenamel junction and the probing depth is 2 Which of the following is the clinical attachment loss is that site?

Water stream device function:

In which stage of gingival inflammation does pocket epithelium develop?

Which of the following is the most striking clinical feature of gingival inflammation during pregnancy?

The most useful instrument grasp for periodontal instrumentation is the:

When performing a scaling and root planing procedure, what is the role of the index finger in the non-working hand?

Which of the following are the optimal angulation of a bladed instrument (e.g. curette) during the actual scaling and root planing?

Which of the following is the probing depth of a clinically healthy gingival sulcus?

Which bone quality would be considered the highest anatomical risk factor for long-term implant placement?

A 39-year-old man presented to the dental clinic with a pacemaker. He was complaining of an increase in the size of his gums. The patient had good oral hygiene and required treatment of fibrous gingival enlargement. Which of the following is considered the safest treatment option?

The dentist plans to perform deep hand scaling for his advanced periodontitis patient. Which molar root configuration will pose more difficulty during periodontal treatment?

A 65-year-old man presented to the clinic complaining of fever and pain after a scaling and root planing visit done two days ago. Clinical examination showed localized swelling in relation to tooth #15 with pus discharge and bleeding on probing. The patient has excellent oral hygiene. Which of the following is the most likely treatment of choice?

A 24-year-old woman came to the dental clinic complaining of a mass in the maxilla. The patient is pregnant in her 28th week and the mass started to appear two months before her visit. It kept increasing in size until it was uncomfortable. Which of the following is the most likely diagnosis of this lesion?

A 34-year-old woman came to the dental clinic for a dental checkup. The patient has several overhanging margins of dental restorations. Which of the following reasons overhanging margins of dental restorations should be removed?

The PerioChip/s must be allowed to stay in the periodontal pocket for how many days?

A 27-year-old woman attended for prosthetic treatment phase of a surgically-placed dental implant on tooth #21. Distal interdental papilla was lost following the extraction of tooth #21. Which of the following is the ideal distance (in mm) between the distal interproximal contact area and bone crest for papilla regrowth?

A 45-year-old man is complaining of bleeding from his gums when brushing. Medically, he is healthy and taking no medications. The clinical examination revealed gingiva that is edematous, erythematous, and there was bleeding on probing involving all of his teeth. Clinical attachment loss was generally between 5-6 mm. Bitewing radiographs show horizontal bone loss. All teeth seem treatable. Which of the following is the most likely diagnosis?

Why does chlorhexidine possess a wide spectrum of antimicrobial properties?

A 50-year-old man was diagnosed with generalized periodontitis. The loss of papilla between his teeth has created significant spaces. The patient is complaining of food accumulation between his teeth. Which of the following is the most effective interdental cleaning for this patient?

Gingival swelling can be classified into four types, which of the following describes a grade II gingival swelling?

A 25-year-old woman complains of deposits on her teeth. Examination revealed yellowish-colored soft deposits which could not be easily dislodged with a water spray. Which of the following best describes the patient’s complaint?

What is the minimum number of implants required to support an implant-retained maxillary overdenture?

The normal probing depth around a healthy implant is:

Complete epithelialization of soft tissues following periodontal surgery occurs after how many days?

Which of the following probes is an automated way of measuring a periodontal sulcus or pocket?

In which stage of gingival inflammation do the clinical signs of gingivitis such as bleeding and redness first appear?

A 27-year-old woman came to the Emergency Clinic suffering from severe pain related to recently placed restoration. Upon examination, the restoration was high and the tooth tested was vital. Which of the following is the diagnostic sign of occlusal trauma?

Which of the following is an indication for using sodium bicarbonate air polishing?

The following describes a healthy gingiva except for:

Which of the following periodontal probes is calibrated or marked at every millimeter?

What is the working angle of a universal curette?

The minimum amount of time dental water and airlines should be washed between patients is:

A 36-year-old man is complaining of pain while chewing related to an upper left premolar. The clinical examination revealed normal probing depths around all of his teeth, except for a 7mm pocket in the distobuccal area of tooth #25. The radiograph shows a vertical bony defect distal to the same tooth. What is the most appropriate treatment for tooth #25?

Which of the following is a characteristic of chronic forms of plaque-induced gingivitis?

In which of the following diseases does the accumulation of advanced glycation end products (AGEs) in gingiva take place?

All of the following are the universal curettes except for:

A 35-year-old man with a high fever presented to the dental clinic complaining of a painful gingival infection. Upon thorough examination, he was diagnosed to have Necrotizing Ulcerative Gingivitis (NUG). Which of the following will be the appropriate management on the first visit?

A 45-year-old man presented to the dental clinic complaining of generalized gingival pain. Clinical examination revealed generalized upper and lower ulcers on the gingiva, along with supra- and subgingival plaque deposits. Body temperature is at 39°C. Which of the following is the most likely treatment of choice?

Pain is normally felt after how many seconds of heavy force application on a tooth?

The dentist plans to perform deep hand scaling for his advanced periodontitis patient. Which of the following teeth-roots will pose more difficulty for the dentist?

Which of the following events will happen if heavy occlusal forces cause pressure severe enough to force the root against the bone?

Which of the following is a contraindication to the use of GTR?

PerioChip is indicated for pockets that are at least how many millimeters deep?