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Table 3 Handling of loss to follow-up

From: Selective or stepwise removal of deep caries in deciduous molars: study protocol for a randomized controlled trial

Level

Reason

Consequence

Tooth

Complication

Complications leading to tooth loss will be counted as non-survival. Teeth with complications which allow the retention of the tooth will be count as non-success. Required follow-up treatments will be recorded and survived teeth will be followed up on.

Lesion treated by other dentist

Tooth will be counted as non-success or non-survival.

Tooth exfoliation

The last observation will be carried forward.

Patient

Adverse or serious adverse events related to treatment or material

Counteractive measures will be taken and events documented.

Patient and tooth will be censored and the last observation carried forward.

The patient cannot be examined (lost to follow-up)

Patient and survived tooth or teeth will be censored and the last observation carried forward.

The patient decides to withdraw from the study.

Patient and tooth will be censored and the last observation carried forward.

Study

One to four patient(s) show adverse events related to treatment or material

Counteractive measures will be taken and events documented.

Patient and tooth will be censored and the last observation carried forward. The study will be interrupted.

More than four patients show adverse events or one patient shows a severe adverse event related to treatment or material

Counteractive measures will be taken and events documented.

The study will be terminated. All patients and available teeth will be marked as censored and the last observation carried forward.