G.R. No. 58652 - Rodillas y Bondoc vs. Sandiganbayan

The appellant, Leon Villanueva, was involved in the fitting of gold crowns on the teeth of three patients: Fausta Arroyo, Teodora Arroyo, and Lucrecia Arroyo.
Prior to placing the crowns on two of the patients (Fausta and Teodora), Villanueva performed trimming on their teeth.
The operation performed did not involve any treatment of diseased or defective teeth; rather, the teeth on which the crowns were placed were described as healthy and not in need of curative intervention.

The legal issue centered on whether Villanueva’s actions fell within the ambit of practicing dentistry as defined under section 794 of the Revised Administrative Code.
Section 794 states that a person is deemed to be practicing dentistry if, for a fee, salary, or other reward, they perform “any operation or part of an operation upon the human teeth or jaws, or who shall treat diseases or lesions, or correct malpositions of the teeth.”
The appellant contended that this section contemplates actual medical or dental treatment aimed at curing defects and thus argued that, since the crowns were placed on healthy teeth, his acts did not qualify as practicing dentistry.

It was pointed out that Villanueva did not possess the necessary license for the practice of dentistry.
Evidence was introduced regarding a previous conviction for the illegal practice of dentistry, establishing a pattern of recidivism.

The Court of First Instance of Laguna had found Villanueva guilty of illegal practice of dentistry with an aggravating circumstance of recidivism.
The judgment imposed a fine of P100, with subsidiary imprisonment in case of insolvency, and an award of costs.

Whether the placing of gold crowns on healthy teeth constitutes “any operation or part of an operation upon the human teeth or jaws” as intended by section 794 of the Revised Administrative Code.
Whether the exclusion of "artisans engaged in the mechanical construction of artificial dentures or other oral devices" applies to Villanueva’s act of placing the gold crowns.

Whether the operation must necessarily be for curative or corrective treatment of defects or diseases, or whether a broader interpretation covering any specific act on the teeth is appropriate.
Whether the act of merely placing the crowns, even on healthy teeth, falls within the ambit of dental practice as it involves a deliberate direct operation on the human teeth.

Whether Villanueva’s prior conviction should be considered an aggravating circumstance in the present case of illegal dental practice.
Whether his collection of fees for the services rendered contributes to establishing his liability under section 794.