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Table 5 Parameters used to calculate the costs per treatment

From: Atraumatic Restorative Treatment compared to the Hall Technique for occluso-proximal cavities in primary molars: study protocol for a randomized controlled trial

Capital cost

• Fixed cost of equipment and instruments such as the cost of autoclave and examination kits. For analysis we will assume that the lifespan of a dental instrument is approximately 3 years or 1095 days (constant depreciation rate).

Materials cost

• supplies such as gloves, masks, articulating paper, restorative material and PMCs. Their accumulated costs will be estimated per restoration.

Labor costs

• salaries of dentists and dental nurses delivering treatment will be calculated using the top point in their Brazilian Public health Service salary scales for the city in which the treatment is being provided. The labor cost per day will be divided by the number of restorations/ PMCs placed per day.